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Crossing the River (Minimum Distance)

42. A river 2...

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42. A river 2 km wide flows at a rate 2km/h. A boatman who can row a boat at a speed of 4 km/h in still water, goes a distance of 2 km upstream and then comes back. The time taken by him to complete his journey is (1) 60 min (2) 70 min (3) 80 min (4) 90 min

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Crossing the River (Minimum Distance)

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