Wednesday, October 26, 2011

nokia's first windows phones review

Nokia took the wraps off its first two Windows Phones at the opening day of its Nokia World conference.
There are two of them: The Nokia Lumia 800 (the phone known as “SeaRay”) and the Lumia 710 (the phone codenamed “Sabre”). The phones both are built on the same 1.4 GHz Snapdragon processor and  “Mango” operating system release. The Lumia 800 features a 3.7-inch display and an 8 MP camera and a ; the 710 has a 3.7-inch display and a 5 MP camera. The estimated retail price of the Lumia 800 is 420 Euros (about $585 U.S.) and the 710 is 270 Euros (or $376 U.S.).

The rumored third Windows Phone device — a more business-focused phone codenamed “Ace” was a no-show today (if it exists at all, which I believe it does).
Many on Twitter noted the first Nokia Windows Phones were solid, but lacking some of the features one might expect — like front-facing cameras, built-in NFC support and on-device storage of more than 16 GB.
There’s no official word as to when — and actually if — the Lumia 800 and 710 models will come to the U.S. Nokia officials promised a “portfolio” of Windows Phones will begin rolling out in the U.S. starting early next year, but didn’t actually say whether those two devices will be part of that portfolio.
We do know that Nokia is going to support CDMA and LTE in certain markets where it makes sense, but, again, no specific official promises. (ThisIsMyNext reporters noted that Verizon Wireless reps were at the show, which is a somewhat encouraging sign for us Windows Phone users on Verizon who still only have one model from which to choose, a year after Windows Phone debuted.)
What wasn’t lacking was Nokia’s thoughts and plans for marketing the new phones with a slogan “Amazing Every day.” Company officials played up during today’s kick-off keynote the way Mango features that are common to all Windows Phones will resonate with consumers and help differentiate Microsoft’s offerings from the Android and iPhone competition.
It doesn’t seem as though Nokia is envisioning its Windows Phones as helping the company attract the next billion phone users; instead, Nokia is playing up its four new S40-based “Asha” phones as its offerings aimed at cost-sensitive younger users in emerging markets. That said, the Lumia 720 is going to be available first (later this year) in Russia, Taiwan, India, Hong Kong and Singapore. The Lumia 800 is going to be available first in six European markets this fall, and Russia, Taiwan, India, Hong Kong and Singapore before the end of the year.
Nokia execs also noted that Nokia is providing its Windows Phone users with some custom applications designed by Nokia and for Nokia products only, including its Nokia Music and Mix Radio services (which seem to have nothing to do with Microsoft’s Zune service) and Drive voice-activated turn-by-turn directions.
Microsoft is really betting heavily on Nokia to push Windows Phone sales. Though the two Lumias introduced today look nice, they seem pretty pricey (to a U.S. consumer like me who is used to cheaper phones), especially given they don’t offer a whole lot more — feature-wise — than other Mango phones. My ZDNet colleague Larry Dignan wonders aloud whether consumers will see them as “must have” gadgets. Maybe other phones in the coming U.S. portfolio will be must-haves, but these, to me, are not. You thoughts?

Tuesday, October 25, 2011

ra one review

It’s always tough to make a sci-fi film where you have to first make the audience understand the basic premise – the ‘new technology’ that makes things happen. And even tougher when your primary target audience is children. Shahrukh Khan and Anubhav Sinha manage to pull it off barely by a pixel. So Shekhar Subramanian (SRK) is a clumsy, Hindi and Tamil speaking game programmer in London. He has a wife Sonia (Kareena Kapoor) and a kid Prateek. To impress his son, he makes a computer game where the villain RA.One is more powerful than the hero, G.One. Then the unexpected happens. Thanks to the ‘new technology’, RA.One enters the real world. Now he is all set to cause destruction everywhere he goes and even G.One might not be able to stop him.
Kareena really doesn’t have much scope to show off her talent, except in the songs and she shines in them. Shahrukh is in a totally new avatar here and it’s not just the curly hair. His romance is downplayed, he does funny football fights and gets his Tamil wrong. But hey, it is an interesting change from his usual dreamy romantic scenes. And when he has to remain expressionless as he is playing a game character, he still conveys a lot with his blue eyes.
A big cheer for Arjun Rampal. We couldn’t wait for RA.One to come out of the game, just so we could see the hunk. We waited. And waited. The most tragic thing that can happen to a hero, happens to Shekhar and all we are thinking is, where is Arjun? It’s post-interval and he is still to make his appearance. Poor Arjun. And to think he shaved his glorious head of hair just to be in less than half a movie. Despite the length of his role, Arjun makes a heady impact.
If you are a die-hard SRK fan, you should give this film a shot. Especially with the VFX actually being really stunning. It makes you want to believe that yes, gaming characters can enter the real world. That’s a huge plus. RA.One has set the bar really high with its VFX. If only director Sinha had paid that much attention to the emotional factor. There are so many moments where you know he wants you to pull out your handkerchief but you just don’t feel the need to. That’s why in the end, we are still left asking one thing: G.One might be a superhero with a heart, but hey Shahrukh, where’s the soul?

Friday, October 21, 2011

Best Low Cost Cheap Dual SIM Phones

It’s time for diwali in India and so many offers around both online and offline shopping stores. So, today we share the list of low cost dual sim phones for Indian users. When talking about Low cost & cheap dual sim phones, Indian mobile phone manufacturers stands out. Micromax, Karbonn Mobiles, Videocon, Lava, Zen mobiles are some of the trusted brands in that order. Here is a list of cheap dual sim mobile phones for this diwali.
Mainly these dual sim phones are targetted over rural areas for low income groups. Already low cost phones with dual sim’s are produced by Nokia & Samsung (guru series) but considering the price, Indian manufacturers such as Micromax, Karbonn mobiles are the leaders in Dual SIM market in India. Let’s check out some of the best dual sim phones from the Indian makers for Indians.

Micromax X215

micromax x215 Diwali Special : Best Low Cost Cheap Dual SIM Phones in India
Micromax X215 is a slim bar type phone which weighs just 65 grams. With the dual sim capacity displaying 1.4 inches which has a display size of 128x128px. It has a camera with 640×480 pixels, zoom feature, video recording, video player which supports 3gp, mp4 format. It can record upto 1000 contact entries, stand by time upto 300 hours and talk time upto 4 hours. Comes in one color – black. No infrared or bluetooth option. Provides with a usb port and cable. It has a browser, so you can enable GPRS and browse internet via mobile phone. It has FM radio, memory slot option where it supports upto 4GB microSD card. There is no internal memory storage. Price of this phone is Rs.999.

Maxx MX111

maxx mx111 Diwali Special : Best Low Cost Cheap Dual SIM Phones in India
Maxx mobiles are another great competitor to Micromax. The Maxx MX111 is a dual sim phone which weighs just 44g, less than micromax x215. Another bar type phone (mostly all the dual sim low cost phones are bar type phones). This is a dual sim + dual stand by phone. But sadly as I said, Maxx doesn’t provide many features in their low cost dual sim phones. There is no camera, video recording, video player, no browser, no MMS, no email, no GPRS, no memory card slot. It just has a internal memory of 32MB. Just a phone book, sms, FM radio, mp3 player. Just another simple dual sim phone. Price RS.999.

Micromax X1i Plus

micromax x1i Diwali Special : Best Low Cost Cheap Dual SIM Phones in India
Another great micromax phone with a dual sim and low price with good features. Bar type model weighs around 82 grams. Dual SIM and Dual Standby option. No camera, no video player. Memory card slot upto 2GB (microSD card). FM radio, GPRS, and great battery power. It works on stand by time upto 30 days and talk time upto 15 hours. Mostly all these low cost dual sim phones concentrate on battery power that allows rural people to talk for a long time. Price – Rs.1,100.

Karbonn K200

karbonn 200 Diwali Special : Best Low Cost Cheap Dual SIM Phones in India
Similar to Micromx X1i plus, but the memory card slot supports upto 8GB and has FM radio, mp3 player. Standy by time upto 96 hours and talk time upto 8 hours. 1050 mAh battery is used. Special features such as Torch Light, Mobile Tracker, Data Protection are provided with this dual SIM mobile phone. Price Rs.1,144.

Micromax X117

micromax 117 Diwali Special : Best Low Cost Cheap Dual SIM Phones in India
Apart from the usual Dual sim, fm radio, mp3 player, what’s special with Micromax X117. It has a TFT screen display and support to 8GB memory slot microSD card. Stand by time of 30 days and talk time of 15 hours. Comes in black color with a price tag of Rs.1,178.

Speaktoit Assistant : iPhone 4S Siri Alternative

With the launch of new iPhone 4S by Apple, where the S stands for Same thing except one special feature, that’s Siri. Siri is a virtual assistant for iPhone4S users that is programmed intelligently. It can help you in what ever things you shoot out. Suppose, if you ask Siri – What is weather like in Tokoyo now? It displays the weather information in tokoyo. Not only weather info, about setting reminders, calling/texting your contacts, finding out information on web, all by means of voice. Yes, Siri is a perfect & intelligent voice interface that acts as a virtual assistant to all iPhone4S users.
ss 480 0 5 Speaktoit Assistant : iPhone 4S Siri Alternative for Android
If you’re looking out for something like Siri for your android phones, then here you go. Speaktoit Assistant is an android app that does the similar work of Siri. Speaktoit assistant android app is a virtual talking buddy for your android smartphone. It can answers questions, performs tasks, notifies you. The Assistant saves you time and makes communication with gadgets and web services easier and less stressful.
ss 480 2 5 Speaktoit Assistant : iPhone 4S Siri Alternative for Android
Speaktoit Assistant is a virtual buddy for your Android device that uses natural language technology to answer questions, find information, launch apps and connect you with various web services, such as Google, Facebook, Twitter, Foursquare, and many others. You can search for addresses in maps using voice, find for images, look up weather reports, convert currency, send email and more.
ss 480 4 5 Speaktoit Assistant : iPhone 4S Siri Alternative for Android
The visual appearance of the Speaktoit app is amazing. You can select your virtual assistant whether you want it to be a pretty blonde or brunette girl, handsome agent or old professor. You can also set up different voices with SVOX or Loquendo TTS.
Other features that Speaktoit Assistant does it for you are, it can dial, text and email people from your contacts, you can save your notes in evernote. Just long tap on Search button to start the Assistant.

Tuesday, October 18, 2011

iris clone of siri for android

While voice control has been part of Android since the dawn of time, Siri came along and ruined the fun with its superior search and understanding capabilities. However, an industrious team of folks from, led by Narayan Babu, built a Siri-alike in just 8 hours during a hackathon.
Iris allows you to search on various subjects including conversions, art, literature, history, and biology. You can ask it “What is a fish?” and it will reply with a paragraph from Wikipedia focusing on our finned friends.
The app will soon be available soon from the Android Marketplace but I tried it recently and found it a bit sparse but quite cool. It uses Android’s speech-to-text functions to understand basic questions and Narayan and his buddies are improving the app all the time.
The coolest thing? The finished the app in eight hours.
When we started seeing results, everyone got excited and started a high speed coding race. In no time, we added Voice input, Text-to-speech, also a lot of hueristic humor into Iris. Not until late evening we decided on the name “iris.”, which would be Siri in reverse. And we also reverse engineered a crazy expansion – Intelligent Rival Imitator of Siri. We were still in the fun mode, but when we started using it the results were actually good, really good.

Sunday, October 16, 2011

top reasons to choose android

Below are the reasons why android is better than others:


Android phones are almost universally available, unlike the iPhone, which is available only at Apple Stores and a select few stores. Also, nearly all Android phones are available almost instantly in India when they are launched worldwide, but the iPhone is available in USA first than in other nations usually after a year, when it is already too old.

Network lock:

The major drawback of iPhone is, it is sold with a network lock - it works only with one mobile service provider to which it is subscribed, and you cannot use it with another provider. Android phones do not have any such restrictions and the users are free to use any network of their choice.


With Style and features, money also matters. When a new iPhone is launched, it is priced exorbitantly and is out of reach for most customers. Whereas, Android phones are a mixed bag as far as price is concerned, as there are so many of them that almost every price segment is covered and you can choose the Android phone that suits your pocket. .

Widgets are valuable because they can provide an at-a-glance look at lots of different kinds of information and quick access to valuable apps and configuration settings. Android phones have screen with widgets with an actual purpose, giving you information at the flick of your finger tip.

For example, Data Counter widget instantly displays data usage to check your internet usage, On the other hand, Twitter widget keeps you updated with your Tweets.

No need for software application on the computer:

iPhone needs iTunes on your computer for syncing to do just about anything on the iPhone, such as transferring applications, music, videos or contacts. In addition, you can sync it with only a limited number of computers. Android phones do not need any such application - simply plug the phone into any computer and exercise complete control over your phone.

Data transfer is as easy as drag and drop. On a side note, I deem the SD card expandable memory option in the Android phone to be better than having no memory slot as in the iPhone, because you can carry additional memory cards with you and use when required without worrying about running out of memory.


You can instantly switch on or off Bluetooth, Wi-Fi, Mobile Network or GPS on the Android phone just by simply clicking on the provided buttons on the home-screen. This goes a long way in conserving battery life. In the iPhone, you have to go deep into the settings to be able to enable or disable these features.

Better web browser:

The web browser on the Android phone is really awesome. To know the reality, you have to use it personally. It is faster than Safari, has every feature that you expect from a web browser, and supports Flash. Being an operating system developed by Google, as expected Google is integrated deep into the heart of Android. Thus, if you want to search, simply enter the search button and enter your search string and the results will appear with no delay.
There is also Google Voice app available for Android.

Of course, the browsing experience varies with the speed of the processor inside the Android phone, which means that you will get the best browsing experience on the more expensive phones. Also, we must mention here that the web browser on the iPhone 4 is supposed to be the best around, but we don't get the iPhone 4 here in India and even if we were to import it, it is too expensive. 

Notification system:

In the iPhone, there is a very limited notification system. For example, if you are a Twitter user, then you need to open the Twitter app to find the tweets.

In Android based phones, notifications are organized in a better fashion. These apps can access the notification system of the operating system and alert you on the notification bar to a new email, voice message, and Twitter or Facebook notification, in addition to SMS. The application runs in the background and you do not need to open it to find out the status.

Click image below for information about app design :

Apps from Market:

Just like the App store from Apple, there are lots of apps for Android available in the Android Market. Just about every iPhone app has an equivalent, which is usually free. The coolest part is that you need not sign into your account every time you want to install an app from the Market, even if the app is free. And yes, Market has more liberal censorship laws for Android apps - Google does not play the moral police.

Unlimited personalization:

Android phones can be personalized the way you want. Thus, you can make the phone appear the way you want, and behave the way you wish.

Depending on the type of user you are, you can configure each desktop to serve your needs. If you are a business user, you may want a screen with contacts, emails, stocks and news updates via RSS, etc. A social network user may want to have a Facebook desktop, a Twitter desktop, and so on. You can even add a whole new desktop if you want and set default actions for different contacts. This is the power of Open Source that is not available in iPhone.

OS update makes your phone better:

Updating the operating system on an older iPhone such as installing iOS 4 on the iPhone 3G, usually affects the performance in the negative way, forcing me think whether it is a strategy by Apple to force you into buying their newer iPhone. Forget about preventing the OS being updated in older devices after a certain version, Apple does not even care to warn the users against the ill effects of updating the OS on older devices.

Android on the other side, has been seen to actually make the phones work faster with the updated OS. Better still, to avoid any problems as we have seen in the previous example, a trend has been seen where most Android phone manufacturers play safe by setting a limit that an Android phone can update its OS only twice in its lifetime.

Some of the above limitations can be overcome by Jailbreaking the iPhone, but then would you risk voiding the warranty on such an expensive device? I wouldn't.

So at last, i have some good enough reasons to decide to go for an Android phone. Please tell me your views in the comments section below.

Saturday, October 15, 2011

tell me o khuda music review

Tell me o kkhuda is come back movie for both hemamalini and esha deol.hence,expectations were high.

The soundtrack consists of seven tracks, three of which have been composed by Pritam (Mausam and Once Upon A Time in Mumbai) and the reminder by other composers amongst which are DJ Aqeel and Sajid Wajid (Dabbangg). It features the vocal talents of Sunidhi Chauhan(‘Sheila Ki Jawani’ – Tees Maar Khan), Anuskha Machanda (‘Mit Jaaye Gham’ – Dum Maaro Dum), Shweta Pandit and Shreya Ghosal (‘Bahara’ – I Hate Luv Storys) amongst other new vocalists. Mayur Puri has penned the first six tracks while Jalees Sherwani has penned the 7th track.
Someone Someday gets the ball rolling. An aesthetically composed track by Abhijeet Hegde Patil, it is equally well rendered by Sunidhi Chauhan. Puri’s decent and hopeful lyrics combined with Patil slow contemporary music makes the number instantly likeable. Unfortunately, I can’t say the same thing about the track’s remixed version. Firstly, the rap lyrics are very off-putting, more so after you see Salman Khan doing a pathetic attempt at lip-syncing them in the music video currently on air. Secondly, it all comes off as rather sleazy. The original may have been sensually aware but it was classy in its sensuality. If you manage to get past that, it may be a decent remix, because the music is great and Anuska Machanda’s vocals are awesome. However, personally, I couldn’t get past the rap.
Things get desi-fied with Mera Man Jabse Racha Hai Sawariya which begins with an ensemble of Rajasthani folk artistes and then turns into a familiar, if not mediocre, romantic number well sung by Shewta Pandit. In the same line as songs like ‘Bahara’ (I Hate Luv Storys) and ‘Saathiya’ (Singham), it’s girly and cute and Puri has done a good job with the lyrics so they don’t sound run-of-the-mill. The folk vocals give the song a nice edge and though it reminds you of prior sufi-esque Pritam numbers like ‘Tum Jo Aaye Zindagi Mein’ (Once Upon A Time In Mumbai) and ‘Teri Ore’ (Singh is Kingg) it does not disappoint.
Next is Mile Na Tu, a fast paced duet vocalised by Sundhi Chauhan and Anupum Amod. As with the previous track, the premise of the track is nothing new. It could have easily been another song with the trade mark phrase “Tere bin(a)…” but Puri has penned it well so the same sentiments are vocalised relatively differently. George Theofanous has composed a short yet effective track. You are tapping your feet to it and bopping your head to it and before you know it the track’s over, thus not giving you the time to over-analyse it. Its just long enough to be enjoyed.
Shreya Ghosal steps behind the mic for Nagma Koi Gunguna Ne Ka, obviously a journey song what with the subtle hints at self-actualisation and the like by Puri. The track is vocally potent but Pritam’s music still leaves an impression, especially the musical interlude just before the end of the song.
Love You Dad, sadly, fails to impress mainly because of the overuse of English lyrics that in my opinion makes it sound amateurish. Throw in the shrill voice of Aditi Banarjee and song falters. Amod’s vocals are wasted on ill-lyrics, a shock since Puri has been doing a fantastic job penning the track’s predecessors. Dad/Son, Dad/Daughter numbers have been composed immensely well in the past and I was personally expecting something like the title track of Akele Hum Akele Tum or Babul or even a lose amalgamation of both, but no such luck.
The soundtrack closes with the title track, Tell Me O Kkhuda. It is a rock-chick-esque of a composition by Sajid-Wajid that has ample opportunity to be choreographed with style and oomph. Sunidhi’s rendition oozes attitude that make the track even more trendy while Jalees’s lyrics are strictly okay. The chorus line can be at odds with the rest of the song but it is still decent number.
In summary, Tell Me O Kkhuda does not offer any new and is not overly impressive. However, it is listenable. ‘Mera Man Jabse Racha Hai Sawariya’ stands out while ‘Somebody Somewhere’ and ‘Nagma Koi Gunguna Ne Ka’ are easy on the ears. And if you need a little tempo give ‘Tell Me O Kkhuda’ and ‘Mile Na Tu’ a try.

my favourite clicks

my favourite pictures clicked by me......

the new begining

the hope 

the rainbow

Thursday, October 13, 2011

revolution 2020 review

Revolution 2020 is Chetan Bhagat’s fifth book after four successive best sellers. With over 5 lakh pre – orders you could be forgiven for thinking that his latest offering was keenly awaited by his fans after a 2 year drought with his “2 States: The Story of My Marriage” releasing way back in 2009. With a title like “Revolution 2020″ and Love.Corruption.Ambition as its tagline / slogan, you expect something different from Chetan Bhagat this time. So does this book succeed? Let’s see!
Gopal is a relatively poor fellow whose barely making ends meet. He’s no stranger to struggles in life whether it is tackling the entrance exams of IITs and NITs or finding his ambition in life. He feels that only money can get you happiness. Raghav on the other hand is ready to mount a revolution against everything corrupt and wrong happening in the society. He believes that someone has to stand up against the system. Aarti is a happy go lucky girl who every guy would dream of having as his soul mate.

The three were the best of friends since school but “Love, Corruption and Ambition” combine together to bring differences between them. As you must have guessed it, both love the same girl and therein lies the main problem.
At its core, this book is a love story like any other Chetan story. But then the expose of the corrupt education system, the profit making private engineering colleges, issue of bribing etc. give the book a contemporary feel. Probably it wasn’t destined since he started writing the book 2 years back, but the issue of corruption has been reignited by Anna Hazare. And for the same reason a lot of readers would associate with the issues mentioned in the book pretty well.
By basing his story in Varanasi, Chetan has shown the willingness to go beyond the metros he has generally portrayed in his story and probably strike a cord with the semi urban populace. His descriptions of each and every ghat are fantastic which goes to show the amount of research he has put in for the same. Another interesting fact different from his earlier books is that the main protagonist is shown (at least in the first half) as someone who isn’t rich but generally has to save money to make do with things in his life.
But the book is predictable and ridden with cliches as usual. You normally know what to expect next. But nonethless the ending was a bit of surprise though yeah it does complete the melodrama pretty well. The premise of the story is interesting but many a time you feel as though things have been a bit extended. A crispier editing job could have made things a lot better.
The characters are pretty well etched it. Actually so well etched out that you can associate movie which actor would be portraying that particular role. The narrative and flow of the story is pretty good as it moves effortlessly from their childhood in Varanasi to Gopal’s coaching classes in Kota to them becoming adults.
Considering the title and the different set of expectations I had, its a bit of a disappointment. But for crazy Chetan fans, go for it! As a matter of fact if I am not wrong, this is Chetan’s most expensive book till date at an MRP of Rs 140. Wonder the reason behind such a hike? Was the content really worthed this hike?

Wednesday, October 12, 2011

The Iphone 4s system-the ios 5

The amazing and ardent foundation
The iphone 4s has changed the face of smart phones as we know it. The iOS 5 is the latest and most spectacular technology when it comes to the cell phones. It is truly the technology of a realm beyond our wildest imaginations.  It is the program on which the iphone 4s has been built and developed.

The Multi Use of iOS 5
 iOS 5 leads to the effective and smooth running of  the multi touch. No other cell phone executes the multi touch as efficiently as the iphone. The iOS 5 blesses the iphone 4s with the latest and most innovative features. The iOS 5 makes the iphone 4s far more secure than any ordinary phone. If the iphone gets lost then it can be accessed from some place else and the data can be deleted before it gets into the wrong hands. The location of the stolen phone can also be noted by the iphone 4s.  To protect the user’s privacy, those applications that require the user’s location are commanded to request the user’s permission to relay his location. Data stored in one application can not be accessed by any other applications.

    iOS also enables the users to relay sensitive information in an encrypted manner. It also comes with the most sought after parental control feature. Parents can block the applications and websites that they do not want their children to have access to.

The iOS 5 feature coupled with the A5 dual core chip makes the cell phone efficient in terms of battery. Since the hardware and software are both made by Apple, their partnership is efficient and smooth. Like video calling; where the users make use of the camera, wifi, and microphone. Since all of them are manufactured and integrated by the same company their running is superior to the others. This partnership also enables the applications to make full use of all the features in the iphone 4s, which include accelerometer, multi touch, three axis gyro and many more. iOS is the most stable cell phone system and it makes use of the latest OS X system.

This system makes it far more stable than other systems. The iOS feature of iphone 4s helps people with disability to experience what most of the world is experiencing. It has a voice over screen reading software that enables those who have impaired vision to hear what they are touching. It also offers over 30 wireless Braille displays. iOS can be used all around the world. There are thirty languages embedded in the user interface. Users can switch between them easily. Since the keyboard is software based customers can use from a variety of languages. iOS makes business on the go easier and safer. A lot of business professionals now use the iOS feature in their iphone 4s, it allows them to work without glitches and it allows them to store, transmit and manage data in an encrypted manner, save from their competitors.



Multiply Up to 20X20 In Your Head

In just FIVE minutes you should learn to quickly multiply up to 20x20 in your head.  With this trick, you will be able to multiply any two numbers from 11 to 19 in your head quickly, without the use of a calculator.
I will assume that you know your multiplication table reasonably well up to 10x10.
Try this:

  • Take 15 x 13 for an example.
  • Always place the larger number of the two on top in your mind.
  • Then draw the shape of Africa mentally so it covers the 15 and the 3 from the 13 below. Those covered numbers are all you need.
  • First add 15 + 3 = 18
  • Add a zero behind it (multiply by 10) to get 180.
  • Multiply the covered lower 3 x the single digit above it the "5" (3x5= 15)
  • Add 180 + 15 = 195. 

Multiply Up to 20X20 In Your Head

In just FIVE minutes you should learn to quickly multiply up to 20x20 in your head.  With this trick, you will be able to multiply any two numbers from 11 to 19 in your head quickly, without the use of a calculator. I will assume that you know your multiplication table reasonably well up to 10x10.
Try this:

  • Take 15 x 13 for an example.
  • Always place the larger number of the two on top in your mind.
  • Then draw the shape of Africa mentally so it covers the 15 and the 3 from the 13 below. Those covered numbers are all you need.
  • First add 15 + 3 = 18
  • Add a zero behind it (multiply by 10) to get 180.
  • Multiply the covered lower 3 x the single digit above it the "5" (3x5= 15)
  • Add 180 + 15 = 195.

The 11 Rule

You likely all know the 10 rule (to multiply by 10, just add a 0 behind the number) but do you know the 11 rule? It is as easy! You should be able to do this one in you head for any two digit number. Practice it on paper first! To multiply any two digit number by 11:
  • For this example we will use 54.
  • Separate the two digits in you mind (5__4).
  • Notice the hole between them!
  • Add the 5 and the 4 together (5+4=9)
  • Put the resulting 9 in the hole 594. That's it! 11 x 54=594
The only thing tricky to remember is that if the result of the addition is greater than 9, you only put the "ones" digit in the hole and carry the "tens" digit from the addition. For example 11 x 57 ... 5__7 ... 5+7=12 ... put the 2 in the hole and add the 1 from the 12 to the 5 in to get 6 for a result of 627 ... 11 x 57 = 627
Practice it on paper first!

Square 2 Digit Number: UP-DOWN Method

Square a 2 Digit Number, for this example 37:
  • Look for the nearest 10 boundary
  • In this case up 3 from 37 to 40.
  • Since you went UP 3 to 40 go DOWN 3 from 37 to 34.
  • Now mentally multiply 34x40
  • The way I do it is 34x10=340;
  • Double it mentally to 680
  • Double it again mentally to 1360
  • This 1360 is the FIRST interim answer.
  • 37 is "3" away from the 10 boundary 40.
  • Square this "3" distance from 10 boundary.
  • 3x3=9 which is the SECOND interim answer.
  • Add the two interim answers to get the final answer.
  • Answer: 1360 + 9 = 1369 

Tuesday, October 11, 2011

tricks n trips 3

today i am going to share some of my all time favorite tricks to solve mathematics questions.

1. The 11 Times Trick
We all know the trick when multiplying by ten – add 0 to the end of the number, but did you know there is an equally easy trick for multiplying a two digit number by 11? This is it:
Take the original number and imagine a space between the two digits (in this example we will use 52:
Now add the two numbers together and put them in the middle:
That is it – you have the answer: 572.
If the numbers in the middle add up to a 2 digit number, just insert the second number and add 1 to the first:
1089 – It works every time.

 2. Quick Square
If you need to square a 2 digit number ending in 5, you can do so very easily with this trick. Mulitply the first digit by itself + 1, and put 25 on the end. That is all!
252 = (2x(2+1)) & 25
2 x 3 = 6

 3. Multiply by 5
Most people memorize the 5 times tables very easily, but when you get in to larger numbers it gets more complex – or does it? This trick is super easy.
Take any number, then divide it by 2 (in other words, halve the number). If the result is whole, add a 0 at the end. If it is not, ignore the remainder and add a 5 at the end. It works everytime:
2682 x 5 = (2682 / 2) & 5 or 0
2682 / 2 = 1341 (whole number so add 0)

4. Multiply by 9
This one is simple – to multiple any number between 1 and 9 by 9 hold both hands in front of your face – drop the finger that corresponds to the number you are multiplying (for example 9×3 – drop your third finger) – count the fingers before the dropped finger (in the case of 9×3 it is 2) then count the numbers after (in this case 7) – the answer is 27.
5.Subtracting from 1,000 
To subtract a large number from 1,000 you can use this basic rule: subtract all but the last number from 9, then subtract the last number from 10:
step1: subtract 6 from 9 = 3
step2: subtract 4 from 9 = 5
step3: subtract 8 from 10 = 2
answer: 352

Monday, October 10, 2011

Aptitude tricks 2

Hope you all have practiced problems on trains. Now let us discuss problems on percentage. percentage is a way of expressing a quantity in 100.
The fundamental concept to remember when performing calculations with percentages is that the percent symbol can be treated as being equivalent to the pure number constant 1 / 100 = 0.01 , for example 35% of 300 can be written as (35/100) × 300 = 105
To calculate a percentage of a percentage, convert both percentages to fractions of 100, or to decimals, and multiply them. For example, 50% of 40% is:
(50/100) × (40/100) = 0.50 × 0.40 = 0.20 = 20/100 = 20%.
It is not correct to divide by 100 and use the percent sign at the same time. (E.g. 25% = 25/100 = 0.25, not 25% / 100, which actually is (25/100) / 100 = 0.0025.)
The easy way to calculate addition in percentage (discount 10% + 5%):
y = [(x1+x2) - (x1*x2)/100%]
For example, in a department store promotion "discount 10%+5%", the total discount is not 15%, but:
y = [(10% + 5%) − (10% * 5%) / 100%] = [15% − 0.5%] = 14.5%
  1. What is 200% of 30?
    Answer: 200% \times 30 = \frac{200}{100} \times 30 = \frac{2}{1} \times 30 = 2 \times 30 = 60
  2. What is 13% of 98?
    Answer: 13% \times 98 = \frac{13}{100} \times 98 = \frac{13 \times 98}{100} = 12.74
  3. 60% of all university students are female. There are 2400 female students. How many students are in the university?
    Answer: 2400 = 60% \times n, therefore  n = \frac{2400}{ \tfrac{60}{100} } = \frac{2400 \times 100}{60} = 4000 
  4. There are 300 cats in the village, and 75 of them are black. What is the percentage of black cats in that village?
    Answer: 75 = n% \times 300 = \frac{n}{100} \times 300, so n = \frac{75}{300} \times 100 = 25 and therefore n% = 25%.
  5. The number of students at the university increased to 4620, compared to last year's 4125, an absolute increase of 495 students. What is the percentual increase?
    Answer: 495 = n% \times 4125 = \frac{n}{100} \times 4125, so n = \frac{495}{4125} \times 100 = 12, and therefore n% = 12%.
  • An increase of 100% in a quantity means that the final amount is 200% of the initial amount (100% of initial + 100% of increase = 200% of initial); in other words, the quantity has doubled.
  • An increase of 800% means the final amount is 9 times the original (100% + 800% = 900% = 9 times as large).
  • A decrease of 60% means the final amount is 40% of the original (100% − 60% = 40%).
  • A decrease of 100% means the final amount is zero (100% − 100% = 0%).
  • Divide the numerator of the fraction by the denominator (e.g. 4 ÷ 5=0.80)
  • Multiply by 100 (Move the decimal point two places to the right) (e.g. 0.80*100 = 80)
  • Round the answer to the desired precision.
  • Follow the answer with the % sign (e.g. 80%)
  • Remove the Percent sign
  • Make a fraction with the percent as the numerator and 100 as the denominator (e.g. 83/100)
  • Reduce the fraction if needed
  1. Percentage Increase/Decrease:
    If the price of a commodity increases by R%, then the reduction in consumption so as not to increase the expenditure is:
    R x 100 %
    (100 + R)

    If the price of a commodity decreases by R%, then the increase in consumption so as not to decrease the expenditure is:
    R x 100 %
    (100 - R)

  2. Results on Population:
    Let the population of a town be P now and suppose it increases at the rate of R% per annum, then:

    1. Population after n years = P 1 + R n

    2. Population n years ago = P
    1 + R n

  3. Results on Depreciation:
    Let the present value of a machine be P. Suppose it depreciates at the rate of R% per annum. Then:

    1. Value of the machine after n years = P 1 - R n

    2. Value of the machine n years ago = P
    1 - R n

    3. If A is R% more than B, then B is less than A by R x 100 %.
    (100 + R)

    4. If A is R% less than B, then B is more than A by R x 100 %.
    (100 - R)
 Will discuss further topics in upcoming blogs.please do comment on the blog and give suggestion to improvise it.