cover a 2. A boat takes 20 min and 30 min to particular distance downstream and upstream respectively. If the speed of the boat in still water is 20 m/s, find the speed of the stream. (1) 6 m/s (2) 8 m/s (3) 12 m/s (4) 4 m/s (5) None of these
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Answer:
Here we have,
(20+v)/(20-v)
= 30/20
where v is speed of the stream.
Solving we get, v = 4 m/s.
Hope it helps you!!
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