Multiple Choice Questions

If the speed of a swimmer in still water is 9 km h Find the downstream speed of the swimmer when the...........

Mental Ability (N tehsildar) Boats and Streams

If the speed of a swimmer in still water is 9 km/h. Find the downstream speed of the swimmer, when the river is flowing with the speed of 6 km/h

10 km/hr

12 km/hr

16 km/hr

15 km/hr

Swimmer's speed in still water = x = 9 km/h

Rate of stream = y = 6 km/h

Therefore, Speed downstream = x + y

= 9 + 6 = 15 km/h

Hence, option 4 is the correct answer.

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Munesh Kumari

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