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A man can row 5 km/h in still water. If the speed of the current is 1 km/h, it takes 3h more in upstream than in the downstream for the same distance. The distance is: |
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Answer» peed of man in stilt WATER (x) = 5 km/hrSpeed of current (y) = 1 km/hrTime taken (t) = 3 hrsLet,The distance be M.We know,SPEED of boat in upstream = x - y = 5 - 1 = 4 km/hrSpeed of boat in DOWNSTREAM = x + y = 5 + 1 = 6 km/hrFrom these,Therefore, |
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