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A boat covers a certain distance downstream in 5 hours and it covers the same distance upstream in 6 hours .
if the speed of the water is 2 km/h . Find the speed of the boat in still water.
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Let the distance covered be s,speed of boat in still water be x km/hr .
Solving equations (i) and (ii)
s=(5x+7.5)=(5.5x−8.25)
⇒5x+7.5=5.5x−8.25
⇒5.5x−5x=7.5+8.25
⇒0.5x=15.75
∴x=
0.5
15.75
=31.5
∴ Speed of boat in still water is 31.5 km/
this is your answer
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