Question

Find the number that does not belong to the group?
$111,331,482,551,263,383,362,284$

• A. $263$
• B. $331$
• C. $383$
• D. $551$

Answer 1

The correct option is C $383$

It follow a pattern :

$1^{st}$ digit $\times$ $2^{nd}$ digit =$3^{rd}$ digit i.e.

$1\times 1=1$, $3\times 1=3$, $4\times 2=8$, $5\times 1=5$,

$2\times 3=6$. But $3\times 3=9$ and the number given is $383$ instead of $393$.

Hence, $383$ is the number which does not belong to the group.