I. QUANT

Today’s Undertaking: Your first reaction to the title of this post is probably, “I know my subtraction well, thank you!” No surprise there. But what is surprising is that our statistics tell us that the following question – which is […]

Today’s Undertaking: In some Quant questions, we are given big nasty numbers in the answer options and little else in the question stem. Often in such cases, the starting point is difficult for the test-taker to find, so today, we […]

Today’s Undertaking: We have seen a number of posts on divisibility, odd-even concepts and perfect squares. Individually, each topic has very simple concepts but when they all come together in one question, it can be difficult to wrap one’s head […]

Today’s Undertaking: Let’s discuss a tricky little question on remainders today. It involves a lot of different concepts – remainder on division by 5, cyclicity and negative remainders. It actually is a little harder than your standard GMAT questions but […]

Today’s Undertaking: The discussion that follows doesn’t fall in the purview of GMAT and you needn’t know it. You will be able to solve any question without taking this post into account but that has never stopped us from letting […]

Today’s Undertaking: Today we will discuss how factorials affect the behavior of odd and even integers. Since we are going to deal with factorials, positive integers will be our concern. Using a question, we will see how factorials are divided. […]