Question

In the given question, select the related number from the given alternatives.
$17$ $:$ $?$ $:$ $:$ $145$ $:$ $195$

• A. $42$
• B. $35$
• C. $30$
• D. $24$

Answer 1

The correct option is B $35$

$145={12}^2+1$

$195={14}^2-1$

Similarly,

$17=4^2+1$

$35=6^2-1$

Hence, B is the correct option.