Quantitative Ability

Toics related to the quants section on the GMAT.

Counting (Permutations & Combinations)

Posted on May 20, 2011

Lecture Video Basic Problem Solving Video Subscribe to be notified when the next video comes!

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Mixtures & Alligation

Posted on Apr 30, 2011

Lecture Video Part 1 Part 2 Part 3 Part 4

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Indices

Posted on Apr 10, 2011

Every rule and operation relating to Exponents and Roots which can be tested on the GMAT has been listed here. Just make yourself comfortable with the operations and notations. Try to do the problems on your own before you look into the explanations. Enjoy! Exponents Any number to the power 1 is itself. Any nonzero number to the power 0 is 1 Negative integer exponents Exponentiation to a negative integer power can alternatively be seen as repeated division of 1 by the base. For instance, Identities and properties for , and Exponentiation is not commutative: 23 = 8, but 32 = 9. Similarly, exponentiation is not associative either: to the 4th power is or...

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Data Sufficiency

Posted on Apr 9, 2011

Am I thinking sufficiently!! No approach – Low accuracy. Right approach – 100% accuracy!! Pointers DS is not PS. (Most of the times you won’t need to get a numerical answer) Get rid of your biases/assumptions. (What’s given is what’s given and what’s not given is not given!!) Memorize the answer options…it’s going to be the same on the actual GMAT. When drawing a geometric figure or checking a given one, be sure to include drawings of extreme cases as well as ordinary ones. When you can’t get a definite answer…make an intelligent guess with the help of this: If 1 is sufficient…answer can be A or D. If 2...

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