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# word problem #3 am i right?

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A boat traveled 60 miles downstream and back. The trip downstream took 3 hours. The trip back took 6 hours. Find the speed of the boat in still water and the speed of the current.

As boat travelled 60 miles downstream in 3 hours it's speed is 60/3=20 miles per hour.

And as it travelled 60 miles upstream in 6 hours it's average speed upstream is 60/6=10 miles per hour.

Speed of boat in still water = x miles per hour and speed of current = y miles per hour.

Speed downstream would be x+y miles per hour and speed upstream would be x−y miles per hour.

x+y=20 and x−y=10

2x=30 or x=30/2=15 and y=20−15=5

The speed of the boat in still water is 15 miles per hour and speed of current is 5 miles per hour.

Aug 29, 2018

#1
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This sounds right to me but CPhill probably has a better answer.

Aug 29, 2018
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Great! I felt good doing this lol

RainbowPanda  Aug 29, 2018
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CPhill  Aug 29, 2018
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Ok then... Good job!

OwenT154  Aug 29, 2018
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Thank you both!

Aug 29, 2018
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HAHAHA!!!....we didn't really do anything  !!!!

CPhill  Aug 29, 2018