Travelling at 3/5th of his usual speed, a man is late by 20 minutes. What is the usual time of the travel with his usual speed?

A man walks at an average speed of 3 km/hr from his home and reaches office 40 minutes early. If he walks at an average speed of 2 km/hr, he would reach office 40 minutes late. What is the distance b…

A train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds. If the speed of the train is 54 km/hr, what is the length of the platform?

The time taken by a train to cross a man travelling in another train is 10 seconds, when the other train is travelling ni the opposite direction. However, it takes 20 seconds, if both the trains are…

A train is 150 m long. It is running at a speed of 41 kmph. A man is running at 11 kmph in the same direction as the train. In what time will it pass the man?

Without stoppages, a train travels at an average speed of 60 km/h and with stoppages it covers the same distance at an average speed of 48 km/h. How many minutes per hour does the train stop?