A man can walk up a moving ‘up’ escalotor in 30 seconds. The same man can walk down moving ‘up’ escalotor in 90s. Assume that his walking speed is same upward. How much time will he take to walk up the escalotor, when it its not moving?

A man can walk up a moving ‘up’ escalotor in 30 seconds. The same man can walk down moving ‘up’ escalotor in 90s. Assume that his walking speed is same upward. How much time will he take to walk up the escalotor, when it its not moving?

A 30s

B 45s

C 60s

D 90s

Solution

Correct Answer: Option B