Time, Speed and Distance

Change 40 m/s into km/h.

• 136 km/h

• 148 km/h

• 126 km/h

• 144 km/h

A train 315 m long is running at 54 km/h. How much time will it takes to cross a pole?

• 30 s

• 28 s

• 25 s

• 21 s

Sound travels at the speed of 330 m/s. How many kilometres will it travel in 1 h?

• 1080

• 1133

• 1188

• 1180

An athelete runs 800 m race in 96 sec. His speed in (km/h) is

• 40 km/h

• 20 km/h

• 25 km/h

• 30 km/h

A train is running at 36 km/h. If it crosses a pole in 25 sec. Find the length of the train.

• 200 m

• 250 m

• 300 m

• 400 m

A train 450 m long, crosses a pole in 22 ½ sec. What is the speed of the train (in km/h)?

• 70

• 72

• 69

• 60

A train covers a distance of 200 km with a speed of 10 km/h. What time is taken by the train to cover to be this distance?

• 18 h

• 5 h

• 20 h

• 15 h

A certain distance is being covered in 28 h by walking with a speed of 5 km/h. If the speed is increased by 2 km/h, then in how much time the same distance will be covered?

• 30 h

• 15 h

• 20 h

• 25 h

The speed of a train going from Patna to Delhi is 100 km/h while its speed is 150 km/h when coming 10 back from Delhi to Patna. What is the average speed during whole journey?

• 120 km/h

• 125 km/h

• 135 km/h

• 140 km/h

A boat is flowing in still water at the speed of 18 km/h. The speed of boat (in m/s) is

• 50

• 72

• 7.2

• 5