I. QUANT

Most of us know that GMAT is a shrew, and is very hard to tame. It is well established that it is able to give a pretty accurate estimate of aptitude with just a few questions, and that the only […]

Those of you who have studied my approaches and methods know that I do not like to take variables. In GMAT questions, often I do not take any variables, rarely I take one and never do I take two. But […]

You must have come across questions which you thought tested one concept but later found out could be easily dealt with using another concept. Often, crafty little mixture problems belong to this category. For example: Mark is playing poker at […]

We know that simple and compound interest (compounded annually) in the first year is the same. In the second year, the only difference is that in compound interest, you earn interest on previous year’s interest too. Hence, the total two […]

They say Mathematics is a perfect Science. There is a debate over this among scientists but we can definitely say that Mathematical methods are not perfect so we cannot use them blindly. We could very well use a standard formula […]