SOLUTION: if you row 360 feet against the current in 6 minutes and 500 feet with the current in 5 minutes how fast is the current?

Question 221733: if you row 360 feet against the current in 6 minutes and 500 feet with the current in 5 minutes how fast is the current?
Answer by rapaljer(4671) (Show Source): You can put this solution on YOUR website!
Let x= speed in still water
c= speed of current
Rate = Dist/Time

x+c = rate with the stream= 500 feet/5 min
x-c= rate against the stream=360 feet/6 min

x+c=100
x-c=60

Add the equations together:
2x=160
x=80 ft/min= speed in still water

x+c=100
80+c=100
c=20 ft/min= speed of current

R^2

Dr. Robert J. Rapalje
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