A boatman can row 3 km against the stream in 20 minutes and return in 18 minutes. Find the rate
of current ?
A) 1/3 kmph
B) 2/3 kmph C) 1/4 kmph D) 1/2kmph
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0
Answer:
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Answered by
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Answer:
D) 1/2 kmph
Step-by-step explanation:
Speed in upstream = Distance / Time = 3 x 60/20 = 9 km/hr.
Speed in downstream = 3 x 60/18 = 10 km/hr
Rate of current = (10-9)/2 = 1/2 km/
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