Number Properties

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. Question: If  and  are […]

If you’ve been studying for the GMAT for any length of time, you are most likely pretty solid on the basic concepts of decimals and rational numbers. Decimals can be either rational or irrational. Decimals which terminate and those which […]

The problem with maximising-minimising strategies is that it is very question specific. What works in one question may not work in another. You might have to think up on what to do in a question from scratch and you have […]

Number properties concepts come across as pretty easy, theoretically, but they have some of the toughest questions. Today let’s take a look at some properties of prime numbers and their sum. Note that don’t try to “learn” all the takeaways […]

Don’t worry, we are not going to discuss (Even + Even = Even) and (Odd + Odd = Even) type of basic number properties in this post. What we have in mind for today is something based on this but […]

GMAT Quant they say is hard. Though we know that it tests you on high school level Math only. Then why do most people find it hard? Because the questions are framed in some seriously innovative ways. For example, I […]

Today, let’s take up a question in which pattern recognition will help us. Mind you, there are various ways of solving a question. Most questions we solve using pattern recognition can be solved using some other method. But pattern recognition […]

Once you have covered your fundamentals, we suggest you to practice advanced questions and jot down your takeaways from them. Sometimes students wonder how to find that all important “takeaway”. Today, let’s discuss how to elicit a takeaway from a […]

Some weeks back, we looked at some rounding rules. Today, let’s go over some official questions on rounding. They are quite simple and if we just keep the “Slip to the side and look for a 5” rule in mind, […]

We all know how to find the last digit using cyclicity when we are given a number raised to a power. Last digit of a number depends only on the last digit of the base. You must be quite familiar […]