A motor boat whose speed is 15 km/hr. In still water takes 4 hours 30 minutes
to go 30 km upstream than to return downstream to the same spot. Find the
speed of the stream.
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4
Answer:
let the speed of stream be x km/h
speed downstream =(15+X)km/h
speed upstream =(15-X)km/h
therefore 30/15+x + 30/15-x =4½
900/225-x² =9/2
9x²=225
x²=25
x=5km/h
Hope this helps
Answered by
3
the speed of stream was 5 km/hr
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