Question

Answer the question in attachment.

Mention briefly the theorems/axioms you use, if any.

This is an aptitude question. Hopefully your answer will help many!

Answer 1

${\mathbb{\large{ANSWER \::- \: 4\: unit}}}$

$\texttt{ Explanation in the attachment}$

${\mathcal{\blue{HOPE\: IT\: HELPS}}}$

Answer 2

PLEASE MARK MY ANSWER AS A BRAINLIEST.