92.A
boat moves downstream at the rate of one km in 10 minutes and upstream at the
rate of 4 km an hour. What is the velocity of the current?
[A]
5 km/hr
[C]
1 km/hr
[B]
3 km/hr
[D]
None of these
Answer : [C]
Explanation :
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Speed
of the boat downstream =
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=
6 km/hr
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Speed
of the boat upstream = 4 km/hr
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Velocity
of the current =
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(Downstream
Speed - Upstream Speed)
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