In each of these questions a number series is given. In each series ‘’only one’’ number is wrong. Find out the ‘’wrong number’’
4, 12, 42, 196, 1005, 6066, 42511
$$T_n = T_{n-1}*n + n^2$$
12 = $$4*2 + 2^2$$
45 = $$12*3 + 3^2$$
196 = $$45*4+4^2$$
and so on.
So 42 is the wrong term in the series.
Create a FREE account and get:
Day-wise Structured & Planned Preparation Guide
By proceeding you agree to create your account
Free CAT Schedule PDF will be sent to your email address soon !!!
