1. A train runs from Howrah to Bandel at an average speed of 20 km/hr and returns at an average speed of 30 km/hr. The average speed (in km/hr) of the train in the whole journey is ?

20

22.5

24

25

Answer: 24

Explanation:


2. A train runs at an average speed of 75 km/hr. If the distance to be covered is 1050 kms, how long will the train take to cover it ?

13 hrs

12 hrs

15 hrs

14 hrs

Answer: 14 hrs

Explanation:


3. A man goes to a place on bicycle at speed of 16 km/hr and comes back at lower speed. If the average speed is 6.4 km/hr in total journey, then the return speed (in km/hr) is ?

10

8

6

4

Answer: 4

Explanation:


4. A car travels from A to B at the rate of 40 km/h and returns from B to A at the rate of 60 km/h. Its average speed during the whole journey is ?

48 km/h

50 km/h

45 km/h

60 km/h

Answer: 48 km/h

Explanation:


5. To cover a distance of 216 km in 3.2 hours, what should be the average speed of the car in metre/second ?

67.5 metre/second

33.75 metre/second

37.5 metre/second

18.75 metre/second

Answer: 18.75 metre/second

Explanation:


6. A bus travels 150 km in 3 hours and then travels next 2 hours at 60 km/hr. Then the average speed of the bus will be ?

55 km/hr.

54 km/hr.

50 km/hr.

60 km/hr.

Answer: 54 km/hr.

Explanation:


7. A train travels 500 m in first minute. In the next 4 minutes, it travels in each minute 125 m more than that in the previous minute. The average speed per hour of the train during those 5 minutes will be ?

30 km/hr

45 km/hr

50 km/hr

55 km/hr

Answer: 45 km/hr

Explanation:


8. A motorist travels to a place 150 km away at an average speed of 50 km/hr and returns at 30 km/hr. His average speed for the whole journey in km/hr is ?

37.5

37

35

40

Answer: 37.5

Explanation:


9. A man travels 50 km at speed 25 km/h and next 40 km at 20 km/h and there after travels 90 km at 15 km/h. His average speed is ?

18 kmph.

25 kmph.

20 kmph.

15 kmph.

Answer: 18 kmph.

Explanation:


10. A truck covers a distance of 550 metre in one minute where as a bus covers a distance of 33 km in 3/4 hour. Then the ratio of their speeds is ?

1 : 3

2 : 3

3 : 4

1 : 4

Answer: 3 : 4

Explanation: