A man walking at a rate of 4 km/h crossed a tunnel in 18 minutes. What is the length of the tunnel in meters?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 1200.
We know that
Speed = Distance / Time
According to the question
Length of the tunnel = Speed of man * Time in crossing the tunnel
= 4 * (5/18) * 18 * 60 m
= 1200 m