A swimmer goes downstream in the river and covers a distance in 2 hours. It covers the same distance upstream in 3 hours. If the speed of stream is 2 kilometre per hour find the speed of swimmer in still water.
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Answer:
10
Step-by-step explanation:
Assume the speed of this swimmer in still water is x. Then,
2(x+2) = 3(x-2)
=> x = 10
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