Question
Download Solution PDFA man can row 10 km/hr in still water. If the speed of the current is 2 km/hr, he takes 3 hours more upstream than downstream. What is the distance (in km)?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFSpeed of the man in still water = 10 km/h
Speed of the current = 2 km/h
Speed of the man along the current = (10 + 2) km/h = 12 km/h
Speed of the man against the current = (10 – 2) km/h = 8 km/h
Given,
He takes 3 hours more in upstream than in the downstream
Let, The distance is x km = x/8 – x/12 = 3
⇒ x = 72 km
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