| 1. | A car covers four successive 7 km distances at speeds of 10 km/hour, 20 km/hour, 30 km/hour and 60 km/hour respectively. Its average speed over this distance is ? | |
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30 km/hour
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20 km/hour
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60 km/hour
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40 km/hour
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Report Question| 2. | The speed of a car is 54 km/hr. What is its speed in m/sec ? | |
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15 m/sec
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19 m/sec
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194.4 m/sec
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150 m/sec
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| 3. | Walking 6/7 th of his usual speed, a man is 12 minutes late. The usual time taken by him to cover that distance is ? | |
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1 hour
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1 hour 12 minutes
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1 hour 15 minutes
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1 hour 20 minutes
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| 4. | By walking at 3/4 of his usual speed, a man reaches his office 20 minutes later than his usual time. The usual time taken by him to reach his office isBy walking at 3/4 of his usual speed, a man reaches his office 20 minutes later than his usual time. The usual time taken by him to reach his office is ? | |
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75 minutes
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60 minutes
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40 minutes
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30 minutes
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| 5. | Walking at 6/7 th of his usual speed a man is 25 minutes late. His usual time to cover this distance is ? | |
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2 hours 30 minutes
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2 hours 15 minutes
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2 hours 25 minutes
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2 hours 10 minutes
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| 6. | A car covers a certain distance in 25 hours. If it reduces the speed by 1/5 th, the car covers 200 km. less in that time. The speed of car is ? | |
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60 km./hr.
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30 km./hr.
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40 km./hr.
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50 km./hr.
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| 7. | A boy rides his bicycle 10km at an average speed of 12 km/hr and again travels 12 km at an average speed of 10 km/hr. His average speed for the entire trip is approximately ? | |
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10.4 km/hr
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10.8 km/hr
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11.0 km/hr
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12.2 km/hr
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| 8. | A train moves with a speed of 30 kmph for 12 minutes and for next 8 minutes at a speed of 45 kmph. Find the average speed of the train ? | |
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37.5 kmph
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36 kmph
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48 kmph
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30 kmph
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| 9. | A man covers half of his journey at 6km/hr and the remaining half at 3km/hr. His average speed is ? | |
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9 km/hr
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4.5 km/hr
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4 km/hr
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3 km/hr
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| 10. | A man goes from A to B at a uniform speed of 12 kmph and returns with a uniform speed of 4 kmph His average speed (in kmph) for the whole journey is ? | |
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8
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7.5
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6
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4.5
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