Math (PS) To make lemonade, a recipe requires 4 lemons, 30 ounces of sugar, and 2 pints of water. One can squeeze out 0.4 cups of 5% citric acid from an average lemon. Marta does not have lemons, but wants to make lemonade from 4 cups...

This post was written by Rich Zwelling, one of Knewton’s awesome GMAT prep instructors. For more GMAT help, check out the Knewton GMAT blog. If you’ve done some GMAT preparation already, you’ve likely come across the concept of “weighted averages.” But what does that term really...

Math (PS) 10 business executives and 7 chairmen meet at a conference. If each business executive shakes the hand of every other business executive and every chairman once, and each chairman shakes the hand of each of the business executives but not the other chairmen, how...

On the GMAT when you are faced with Critical Reasoning “explain” questions, your task is to identify the two pieces of information that appear to contradict and look for the answer choice that explains why they do not. For practice, try the problem...

Math (DS) If , what is the value of integer ? 1. is divisible by at least 2 prime numbers greater than 2 2. is prime GMAT Daily Deals Time management is an essential GMAT skill-learn how to manage your time from Manhattan GMAT. Learn more! Get Stacy...

This post was written by Christina Yu. For more expert GMAT prep advice, check out the Knewton GMAT blog. We all know “fun” is a relative term – for some that might mean ruling the boardroom, raking in millions, or advising powerful executives on...

Perhaps no GMAT item is as emblematic of the test as is a Data Sufficiency question.  It is  unique to the GMAT and true to the aims of this specific test: to reward those who show the higher-order reasoning skills that will...

Math (DS) What is the value of the following expression: 1. 2. GMAT Daily Deals Join Kaplan in their Road to Business School. Seminars, meet and greets, and admission advice. Register now! Save $100 when you sign up for admissions services with mbaMission. Mention GMAT Club to...

Math on the GMAT can be hard enough when it is presented without trickery. However, the test-maker knows that even simple math can be made challenging by including complex verbal descriptions or by disguising one mathematical concept as another. Kaplan considers paraphrasing one of...

Math (PS) What is the value of if the sum of odd, consecutive, positive integers from 1 to equals 441? (A) 47 (B) 41 (C) 37 (D) 33 (E) 29 GMAT Daily Deals 65% of students miss this data sufficiency question > How would you approach it? Knewton explains Need help with...