1. A runs twice as fast as B and B runs thrice as fast as C. The distance covered by C in 72 minutes, will be covered by A in ?

18 minutes

24 minutes

16 minutes

12 minutes

Answer: 12 minutes

Explanation:


2. A car completes a journey in 10 hours. If it covers half of the journey at 40 kmph and the remaining half at 60 kmph, the distance covered by car is ?

400 km

480 km

380 km

300 km

Answer: 480 km

Explanation:


3. A is twice as fast runner as B, and B is thrice as fast runner as C. If C travelled a distance in 1 hour 54 minutes, the time taken by B to cover the same distance is ?

19 minutes

38 minutes

51 minutes

57 minutes

Answer: 38 minutes

Explanation:


4. A speed of 45 km per hour is the same as ?

12.5 metre/seccond

13 metre/seccond

15 metre/seccond

12 metre/seccond

Answer: 12.5 metre/seccond

Explanation:


5. In a one-kilometre race A, B and C are the three participants. A can give B a start of 50 m. and C a start of 69 m. The start, which B can allow C is ?

17 m

20 m

19 m

18 m

Answer: 20 m

Explanation:


6. It takes eight hours for a 600 km journey, if 120 km is done by train and the rest by car. It takes 20 minutes more, if 200 km is done by train and the rest by car. The ratio of the speed of the train to that of the car is ?

3 : 5

3 : 4

4 : 3

4 : 5

Answer: 3 : 4

Explanation:


7. Gautam travels 160 kms at 32 kmph and returns at 40 kmph. Then his average speed is ?

72 kmph

71.11 kmph

36 kmph

35.55 kmph

Answer: 35.55 kmph

Explanation:


8. A man goes from Mysore to Bangalore at a uniform speed of 40 km/hr and comes back to Mysore at a uniform speed of 60 km/hr. His average speed for the whole journey is ?

48 km/hr

50 km/hr

54 km/hr

55 km/hr

Answer: 48 km/hr

Explanation:


9. A car goes 20 metres in a second. Find its speed in km/hr ?

18

72

36

20

Answer: 72

Explanation:


10. Sound travels at 330 metre per second. The distance (in kilometre) of a thunder cloud when its sound follows the flash after 10 seconds is : ?

0.33 km

3.3 km

33 km

33.3 km

Answer: 3.3 km

Explanation: