a person rowing a boat at the rate of 5 km/hr in still water takes thrice as much as time in going 40km upstream as in going 40km downstream. find the speed of the stream
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speed of boat = 5km/h
speed of stream = x km/h
when it goes 50 km upstream
total speed = (5-x) km/h
time = distance/ speed
t= 40/(5-x)
when it goes downsteam speed = 5+ x
a.t.q. 3t = 40/ (5-x)
t= (5-x)/120
solve the equations and get answer
speed of stream = x km/h
when it goes 50 km upstream
total speed = (5-x) km/h
time = distance/ speed
t= 40/(5-x)
when it goes downsteam speed = 5+ x
a.t.q. 3t = 40/ (5-x)
t= (5-x)/120
solve the equations and get answer
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