Question

In each of the following question, select the related number from the given alternatives.
$7$ $:$ $50$ $:$ $:$ $17$ $:$ $?$

• A. $288$
• B. $118$
• C. $290$
• D. $324$

Answer 1

Answer: (C)

$290$

$7^2+1=50$

Similarly, ${17}^2+1=290$

So, $7$ and $50$ are related the same way $17$ and $290$ are related.

$\therefore$ The correct answer is $290$. $\left[C\right]$