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प्रश्न
Solve the following question and mark the best possible option.
A person can swim in still water at 4 km/hr. If the speed of water is 2 km/hr, how many hours will the man take to swim back against the current for 6 km?
पर्याय
3
4
`4 1/2`
Data inadequate
MCQ
उत्तर
Speed upstream = (4 -2)km/h = 2 km/h
Time taken to swim 6km agianst the current is 6 / (4-2) = 3 hours.
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Time, Speed and Distance (Entrance Exam)
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