16.A
boatman can row 2 km against the stream in 20 minutes and return in 18 minutes.
Find the rate of current
[A]
1/3 km/hr
[C]
5/3 km/hr
[B]
2/3 km/hr
[D]
None of these
Answer : [A]
Explanation :
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Speed
of the boatman upstream =
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x
60 = 6 km/hr.
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Speed
of the boatman downstream =
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x
60 =
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km/hr
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Rate
of current =
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(Downstream
Speed - Upstream Speed)
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