A boat covers 32 km upstream and 36 km downstream in 7 hours. Also it
covers 40 km upstream and 48 km downstream in 9 hours. Find the speed of the
boat in still water and that of the stream
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boat covers 32 km upstream and 36 km downstream in 7 hours and 40 kilometre upstream and 48 kilometre downstream in 9 hours .
SPEED = DISTANCE/ TIME
= 32+36/7= 68/7
=40+48/9= 88/9
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