9.A
man rows downstream 33 km and upstream 27 km taking 3 hrs each time. What is
the velocity of the current?
[A]
3
[C]
1
[B]
5
[D]
1.5
Answer : [C]
Explanation :
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Rate downstream =
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33
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kmph
= 11 kmph
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3
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Rate upstream =
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27
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kmph
= 9 kmph
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3
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Velocity
of current is
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1
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(11
- 9) kmph = 1 kmph
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2
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