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What is the speed of the stream?

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A motor-boat is going up a river at a speed of 14.4 kmph, when its pilot sights a drifting boat which is 234 meters distant and reaches it after 52 seconds.
What is the speed of the stream?

posted Aug 12 by Pankaj Deshmukh

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1 Answer

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Combined speed ---> 234 m / 52 sec = 4.5 m/sec = 16.2 kmph
Speed of the stream ---> 16.2-14.4=1.8 kmph

answer Aug 13 by Hanifa Mammadov

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