SOLUTION: Johan, in his motorboat, took 3 hours to make a downstream trip with the current at 6 kph. The return trip took 5 hours. What is the speed of the boat in still water? What is the t
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-> SOLUTION: Johan, in his motorboat, took 3 hours to make a downstream trip with the current at 6 kph. The return trip took 5 hours. What is the speed of the boat in still water? What is the t
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Question 98333: Johan, in his motorboat, took 3 hours to make a downstream trip with the current at 6 kph. The return trip took 5 hours. What is the speed of the boat in still water? What is the total distance travelled? Answer by Nate(3500) (Show Source):
You can put this solution on YOUR website! Downstream:
rate = x + 6
time = 3
distance = 3x + 18
Upstream:
rate = x - 6
time = 5
distance = 5x - 30
The distances were equal ...
5x - 30 = 3x + 18
2x = 48
x = 24
The rest is simple work ...
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