Question

In each of the following question, select the related number from the given alternatives.
$121$ $:$ $12$ $:$ $:$ $25$ $:$ $?$

• A. $1$
• B. $2$
• C. $6$
• D. $7$

Answer 1

Answer: (C)

$6$

$121:12=\{{11}^2,11+1\}$

Similarly,

$25:6=\{5^2,5+1\}$

Therefore, $6$ is required number.

Hence, C is the correct option.