Question

a train has speed of 45km/hr without stoppage and a speed of 30km/hr with stoppages. how many minutes per hour does the rain stop?​

Answer 1

Answer

12 mins per Hour

Explanation:

A train has an average speed of 45 km/hr without stoppages and 36 km/hr including stoppage time. Calculate the average stopping time (in minutes) per hour for the train.

Let say Distance = 180D km

average speed of 45 km/hr without stoppages

Time taken Without stoppage = 180D/45 = 4D hr

average speed of 36 km/hr including stoppages

Time Taken = 180D/36 = 5D hr

Stoppage Time = 5D - 4D = D km

Stoppage Time Per hour = D/5D = 1/5 Hr

= 12 mins per Hour