Question

Identify the term that will replace the ?

$1,9,25,49,?,121$

• A. $64$
• B. $81$
• C. $91$
• D. $100$

Answer 1

Answer: (B)

$81$

The given series consists of squares of
consecutive odd numbers i.e. $1^2$, $3^2$, $5^2$, $7^2$,.. So, missing term $=9^2=81$