Question

Find the wrong term in the following sequence.

$5,8,10,12,15,18,20,23$.

Answer 1

The given series is
$5,5+3,8+2,10+3,13+2,15+3,18+2,20+3$
$5,8,10,13,15,18,20,23.$
Therefore wrong term is $12$ and should be replaced by $13$.