Question

16, 23, 48, 79, 128, 191, 268
Find the wrong number from these series

Answer 1

Answer:

The difference of the two consecutive numbers are 1, 4, 9, 16, 25, 35.

This is clearly , +(12), +(22), +(32), +(42), +(52),+(62)

Here 35 is wrong, So our wrong number is 91