Question

What number will replace the ?

$4,9,25,?,121,169,289,361$

• A. $49$
• B. $64$
• C. $81$
• D. $87$

Answer 1

The correct option is A $49$

The given series consists of squares of consecutive prime number i.e.
$2^2$, $3^2$, $5^2$,...., ${11}^2$, ${13}^2$, ${17}^2$, ${19}^2$.
So, missing term $=7^2=49$
Hence,option A is the correct answer.