| 1. | A man can row upstream at 16 km/hr and downstream at 24 km/hr. Find the speed of the current ? | |
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4 kmph
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6 kmph
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5 kmph
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3 kmph
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Report Question| 2. | A boat running downstream covers a distance of 20 km in 2 hrs while it covers the same distance upstream in 5 hrs. Then speed of the boat in still water is ? | |
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7 km/hr
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8 km/hr
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9 km/hr
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10 km/hr
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| 3. | A man swims downstream a distance of 15 km in 1 hour. If the speed of the current is 5 km/hour, the time taken by the man to swim the same distance upstream is ? | |
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1 hour 30 minutes
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45 minutes
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2 hours 30 minutes
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3 hours
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| 4. | A boat goes 6 km an hour in still water, but takes thrice as much time in going the same distance against the current. The speed of the current (in km/hour) is ? | |
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4
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5
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3
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2
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| 5. | A man can row at a speed of 4.5 km/hr in still water. If he takes 2 times as long to row a distance upstream as to row the same distance downstream, then, the speed of stream (in km/hr) is ? | |
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1
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1.5
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2
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2.5
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| 6. | A motor boat covers a certain distance downstream in a river in 3 hours. It covers the same distance upstream in 3 hours and a half. If the speed of water is 1.5 km/h, then the speed of the boat in still water is ? | |
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17 km/h
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19.5 km/h
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17.5 km/h
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19 km/h
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| 7. | A man can row 30 km downstream and return in a total of 8 hours. If the speed of the boat in still water is four times the speed of the current, then the speed of the current is ? | |
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1 km/hour
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2 km/hour
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4 km/hour
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3 km/hour
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| 8. | A boat goes 20 km downstream in one hour and the same distance upstream in two hours. The speed of the boat in still water is ? | |
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15 km/hr.
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10 km/hr.
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5 km/hr.
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7.5 km/hr.
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| 9. | The speed of a motor-boat is thatof the current of water as 36 : 5. The boat goes along with the current in 5 hours 10 minutes. It will come back in ? | |
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5 hours 50 minutes
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6 hours
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6 hours 50 minutes
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12 hours 10 minutes
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| 10. | Speed of motorboat in still water is 45kmph. If the motorboat travels 80 km along the stream in 1 hour 20 minutes, then the time taken by it to cover the same distance against the stream will be ? | |
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3 hours
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1 hour 20 minutes
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2 hours 40 minutes
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2 hours 55 minutes
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