Question

In the given question, select the related number from the given alternatives.
$64$ $:$ $4$ $:$ $:$ $?$ $:$ $9$

• A. $18$
• B. $729$
• C. $81$
• D. $144$

Answer 1

Answer: (B)

$729$

Given that $64:4::?:9$

We know that,

$4^3=64$

$4$ and $64$ are related the same way as $9$ and $?$ are related.

So, we need to find $9^3$

But $9^3=729$.

Hence, the correct answer is $729$ i.e. option B.