What was the speed of the boat in still water?

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The current in the river flowed at 3 miles per hour. The boat could travel 12 miles upstream.

2007-05-22 05:23:53 · 4 answers · asked by Hck3r g0t mii psSw0rd 2 in Science & Mathematics ➔ Mathematics

12+3 = 15 mph in still water
15-3 = 12 mph upstream
15+3 = 18 mph downstream

2007-05-22 05:29:49 · answer #1 · answered by ironduke8159 7 · 0⤊ 0⤋

12 miles per hour, I think you mean. That would make the speed of the boat in still water 12 + 3 = 15.

2007-05-22 05:27:28 · answer #2 · answered by Anonymous · 0⤊ 0⤋

15 miles/ hour

2007-05-22 05:26:53 · answer #3 · answered by gartfield72 2 · 0⤊ 0⤋

You need to specify the time it took for the boat to go upsteam....

MORE INFO REQUIRED

2007-05-22 05:27:23 · answer #4 · answered by mark r 4 · 0⤊ 0⤋