App Logo

No.1 PSC Learning App

1M+ Downloads
An athlete runs 200 metres race in 24 seconds. His speed is

A20km/hr

B24 km/hr

C25 km/hr

D30 km/hr

Answer:

D. 30 km/hr

Read Explanation:

Speed = 200/24 m/sec =25/3 m/sec =(25/3 x 18/5)km/hr = 30km/hr


Related Questions:

If a person walks away from the 5/7 of his real speed, he takes 20 minutes more time to cover that distance. Find his actual time?
A certain distance was covered by a car at a speed of 60 km per hour and comes back at the speed of 36 km per hour . What is the average speed of the car ?
The speed of a boat in still water is 15 km/hr. It can go 30 km upstream and return down stream to the original point in 4 hrs and 30 minutes. Find the speed of the stream:
A certain distance is covered at a certain speed. If half the distance is covered in double the time, what is the ratio of the two speeds?
Two cars A and B starting at the same time meet each other after t hours in opposite directions and reach their destination after 5 hours and 6 hours respectively after the meeting. If the speed of car A is 55 km/h, then what will be the speed of car B?