Question

Which number is like the given set of numbers?
$(50,101,170)$

• A. $80$
• B. $37$
• C. $121$
• D. $120$

Answer 1

Answer: (B)

$37$

The logic of each number in the group is $x^2+1$
$50=7^2+1$

$101={10}^2+1$

$170={13}^2+1$

The only number which satisfies the above logic is :

$37=6^2+1$.