Question

In the given question, select the related number from the given alternatives.
$29$ $:$ $319$ $:$ $:$ $23$ $:$ $?$

• A. $252$
• B. $115$
• C. $46$
• D. $151$

Answer 1

The correct option is B $115$

Taking LHS,

The two numbers follow the relation that second number is the product of first number and $18$ subtracted from first number,i.e.

$\Rightarrow 319=29\times (29-18)=29\times 11$

This means that the $?$ should be replaced by the product of $23$ and $(23-18)$, i.e.,

$\Rightarrow ?=23\times (23-18)=23\times 5=115$

Hence, the correct answer is option $B$