A race boat covers A distance of 60km downstream in one and half hour .it covers this distance upstream in 2 hours .the speed of the race boat in still water is 35km/h .find the speed of the Stream.
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Let the speed of downstream be Y km /h
A/q. . . In.
Downstream mode
=(Y+35)km/h
But, distance=time*speed
So, 60=2(Y+35)
= 60=2Y+70
Y=-5km/h. . =5km/h
Again let the speed of upstream mode be Xkm/h
So, 120=X+35
X=85KM/H
A/q. . . In.
Downstream mode
=(Y+35)km/h
But, distance=time*speed
So, 60=2(Y+35)
= 60=2Y+70
Y=-5km/h. . =5km/h
Again let the speed of upstream mode be Xkm/h
So, 120=X+35
X=85KM/H
julee8789054707:
Thanku raj kumar
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