a boat travels 20 km/hr in a river
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i think your question is incomplete
anujyadav31:
wt doing
nothing
ok
in which class ur
i am in 10 th class and you
10th class same here
ok
how ur studies going on
good
nyc
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A boat travels 20km upstream in a river in the same period of time as it takes to travel 30 km downstream . if the rate of the stream is 4 km/hr , find the speed of the boat in still water.
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