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A motor boat covers a distance of 60 km in 3/2 hours in down stream and it covers this distance upstream in 2 hours. The speed of motor boat in still water is 35km 1 h . find the speed of the stream.​

Answer»

-STEP explanation:Given, distance covered = 60 kmTime TAKEN in DOWNSTREAM = 1.5 hour and TIME taken in upstream = 2 hour Therefore, speed downstream = 1.560 =40km/hand speed upstream = 260 =30km/hWe know that, speed of the stream = 21 (downstreamspeed−upstreamspeed)= 21 (40−30)=5km/h



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