Aptitude  Boats and Streams  Practice Q&A-Easy

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11. Speed of a boat in standing water is 9 kmph and the speed of the stream is 1.5 kmph. A man rows to a place at a distance of 105 km and comes back to the starting point. The total time taken by him is:

16 hours 18 hours 20 hours 24 hours

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12. In one hour, a boat goes 11 km/hr along the stream and 5 km/hr against the stream. The speed of the boat in still water in km/hr is:

3 km/hr 5 km/hr 8 km/hr 9 km/hr

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13. A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream.

2 hours 3 hours 4 hours 5 hours

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14. If a mans rate with the current is 15 km/hr and the rate of the current is 11/2 km/hr, then his rate against the current is

12 km/hr 10 km/hr 10.5 km/hr 12.5 km/hr

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15. The speed of the boat in still water in 12 kmph. It can travel downstream through 45 kms in 3 hrs. In what time would it cover the same distance upstream?

8 hours 6 hours 4 hours 5 hours

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