Question

In the given question, select the related number from the given alternatives.
$144$ $:$ $13$ $:$ $:$ $49$ $:$ $?$

• A. $8$
• B. $9$
• C. $10$
• D. $11$

Answer 1

The correct option is A $8$

In the first pair,

$\sqrt{144}+1=12+1=13$

Following same pattern for second pair, we have

$\sqrt{49}+1=7+1=8$

So, $144$ and $13$ are related the same way $49$ and $8$ are related.

$\therefore$ The correct answer is $8$. $\left[A\right]$