A boat goes 35 km upstream and 44km downstream in 10 hrs. In 13 hrs it can go 40 km upstream and 55 km downstream. Determine the speed of stream and speed of boat in still water.
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speed of boat be x, speed of water be y
time = 10 and 13
Speed =distance\time
distance=speed *time
d = (x+y)10
d= 10x+ 10y
44=10x+10y.
55= 13x+13y
eq 1 *13, eq 2 *10 and then solve x and y
time = 10 and 13
Speed =distance\time
distance=speed *time
d = (x+y)10
d= 10x+ 10y
44=10x+10y.
55= 13x+13y
eq 1 *13, eq 2 *10 and then solve x and y
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