Asked by Anish Panda
A motorboat that travels with a speed of 20 km/hour in still water has traveled 36 km against the current and 22 km with the current, having spent 3 hours on the entire trip. Find the speed of the current of the river.
Answers
Answered by
Steve
since time = distance/speed,
36/(20-s) + 22/(20+s) = 3
36/(20-s) + 22/(20+s) = 3
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