MAT Interview Question:

What is the wrong number in the series-13,16,21,27,39,52,69?

Submitted by: Administrator

here's d sol:27 shud hv bn 28 as d difference dat d nos.in
d series carry b/w dm is dat of a prime no.
16-13=3
21-16=5
28-21=7
39-28=11
52-39=13
69-52=17
thus,27 is d wrng no.
Submitted by: Administrator