Question

A boat goes 200 km downstream in 50 hours, and 90 km upstream in 30 hours. The speed of the stream is

Q: A boat goes 200 km downstream in 50 hours, and 90 km upstream in 30 hours. The speed of the stream i

Distance downstream= 200 km Time taken to row downstream = 50 hrs. Speed downstream = 200/50= 4 km/hr. Distance upstream= 90 km, Time taken to row upstream = 30 hrs. Speed upstream =90/30= 3 km/hr. Speed of the stream = 1/2(4-3)= 1/2 km/hr

A 2 km/hr

B 0.2 km/hr

C 0.5 km/hr

D 2.5 km/hr

E none of these

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Question

A boat goes 200 km downstream in 50 hours, and 90 km upstream in 30 hours. The speed of the stream is

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