## CAT Quantitative: How to approach a problem

One of the things that weighs constantly on CAT test-takers is how they can increase their speed and accuracy. More often than not test-takers discover the right way to solve a problem mid-way through the problem – after they have spent about 2 minutes following one approach. So what is the best way to increase speed and accuracy? Identify the right way to approach a problem before you start solving it. Let us examine how to do this by taking an old SimCAT problem. Given that f(x) = sec x – tan x. If f(x) = k, then what is the value of cosec x? 1-k/1+k 1+k2/1-k2 1-k2/1+k2 k2/1+k2 Rule # 1: Do not leave this problem thinking — “It is Functions + Trigonometry!“ As we discussed in a previous post, CAT problems are deliberately designed to be seemingly tough or unapproachable! This problem has nothing to do with functions, it is just a fancy way of saying if sec x – tan x = k then cosec x = ? Rule # …