A motor boat takes a total of 5 hours to travel 36km upstream and...

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Bluebear

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A motor boat takes a total of 5 hours to travel 36km upstream and then 36 hours downstream. If the speed of the current is 3km/hr , find the speed of the boat in still water.
 
Bluebear said:
A motor boat takes a total of 5 hours to travel 36km upstream and then 36 hours downstream. If the speed of the current is 3km/hr , find the speed of the boat in still water.
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To learn how to set up and solve this sort of exercise, please try here. Once you have studied the lesson, please attempt the above exercise. If you get stuck, you can then reply with your work and reasoning so far, at which point we can provide you with further assistance.

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