A boat goes upstream with speed of 30km/hr while downstream has 50KM/HR FIND OUT SPEED OF BOAT STILL IN WATER ?
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let the speed of the boat in still water be x km/hr. and speed of the stream be y km/hr,
then
according to the question, we have
x-y=30,...........eq(1),
x+y=50,............eq(2),
now adding these two equations, we have e
2x=30+50,
2x=80,
hence
x=40 km/hr
then
according to the question, we have
x-y=30,...........eq(1),
x+y=50,............eq(2),
now adding these two equations, we have e
2x=30+50,
2x=80,
hence
x=40 km/hr
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