The boat goes downstream at the rate 25 m/s and upstream at 15 m/s. Then the speed of the stream is
(A) 10 m/s (B) 20 m/s (C) 5 m/s (D) 40 m/s
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20m/s
Step-by-step explanation:
speed=distance/speed
speed=25+15/2
speed=40/2
speed=20m/s
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