SOLUTION: Trey's boat travels 24 km/h in still water. He motors 150 km downstream in the same time it takes to go 90 km upstream. What is the speed of the river?

Question 318786: Trey's boat travels 24 km/h in still water. He motors 150 km downstream in the same time it takes to go 90 km upstream. What is the speed of the river?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Rate*Time=Distance
.
.
.
Let C be the current speed.
1.
2.
From eq. 1 and eq. 2,

.
.

The speed of the current is 6 km/h.
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