Question

A boat goes 30 km upstream and 44 km downstream in 10 hours. In 13 hours, it can go

40 km upstream and 55 km down-stream. Determine the speed of the stream and that of the

boat in still water​

Answer 1

Answer:

x=8

y=3

Step-by-step explanation:

30/x-y+ 44/x+y=10-------×4

40/x-y+55/x+y=13----------×3

solve equations

x+y====11

x-y====5

x=8

y=3

Answer 2

Answer:

x=8

y=3

Step-by-step explanation:

30/x-y+ 44/x+y=10-------×4

40/x-y+55/x+y=13----------×3

solve equations

x+y====11

x-y====5

x=8

y=3