Question 331852
A sail boat travels 20 miles downstream in 3 hours. I returns in 4 hours. Find the speed of the sailboat in still water and the rate of the current.
I know its 35/6 for speed and 5/6 but how can I check this out?
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20 miles in 3 hours = 20/3 mph
20 miles in 4 hours = 5 mph
The boat speed is the average, = 35/6 mph
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The current speed is the difference, = 35/6 - 5 = 5/6 mph