Question
The speed of a boat in still water is 5 km/hr and speed
of current is 3 km/hr. If time taken to cover a certain distance upstream is 12 hours, then how long will the boat take to cover the same distance downstream?Solution
Total distance = 12 × (5 – 3) = 24 km Required time = 24/(5 + 8) = 3 hrs
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