A person standing between two parallel hills fires a gun. He hears the first echo after `(3) /(2)`
Channel: Doubtnut
Date: 2020-07-12

A person standing between two parallel hills fires a gun. He hears the first echo after `(3) /(2)` s, and a second echo after `(5) /(5)` s. If speed of sound is `332 m//s` , Calculate the distance between the hills. When will he hear the third echo?