What is the length of the longest pole which can be kept in a room 12 m long, 4 m broad and 3 m high?

A 13 m

B 14 m

C 15 m

D 16 m

Correct Answer: Option A

The length of the longest pole which can be kept in a room 12 m long, 4 m broad and 3 m high is

=> \(d^2\;=\;12^2\;+\;4^2\;+\;3^2\;\) = 13 mts