SOLUTION: A motorboat takes 4 hours to travel 320 km going upstream. the return trip takes 2 hours going downstream. What is the rate of the boat in still water and what is the rate of the c

Question 387690: A motorboat takes 4 hours to travel 320 km going upstream. the return trip takes 2 hours going downstream. What is the rate of the boat in still water and what is the rate of the current?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Rate*Time=Distance

.
.
.
Let the boat rate be , the current rate .
With the current,

1.
Against the current,

2.
Add the equations together,

kph
Then use either equation to solve for .

kph
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