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30.
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A
man can row upstream at 7 kmph and downstream at 10 kmph.Find man's rate in
still water and the rate of current?
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|
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A. 1.2 km/hr
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B.
1.5 km/hr
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|
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C. 1.6 km/hr
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D. 1.8 km/hr
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Answer:
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Rate
in still water
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= 1
/ 2 (10 + 7) km/hr
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=
8.5 km/hr.
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Rate
of current
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= 1
/ 2(10 - 7) km/hr
|
|
=
1.5 km/hr.
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Title : BOATS and STREAMS Q30
Description : 30. A man can row upstream at 7 kmph and downstream at 10 kmph.Find man's rate in still water and the rate of cur...
Rating : 5
