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- A man can row upstream 10 kmph and downstream 20 kmph.
Question 1:
A man can row upstream 10 kmph and downstream 20 kmph.Find the man rate in still water and rate of the stream.
A. 0,5
B. 5,5
C. 15,5
Feedback Please remember, If a is rate downstream and b is rate upstream
Rate in still water = 1/2(a+b)
Rate of current = 1/2(a-b)
=> Rate in still water = 1/2(20+10) = 15 kmph
=> Rate of current = 1/2(20-10) = 5 kmph
Rate in still water = 1/2(a+b)
Rate of current = 1/2(a-b)
=> Rate in still water = 1/2(20+10) = 15 kmph
=> Rate of current = 1/2(20-10) = 5 kmph
D. 10,5
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