Question

Haji rows his canoe 10 mph in still water. He noticed one day that he could row 4 miles upstream in the same amount of time he could row 6 miles downstream. What was the approximate speed of the current that day?

Answer 1

2.0 mph
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Answer 2

So you see that he was rowing up stream and could go 4 miles an hour, but down stream, with the push of the current gave him an extra boost of 2 miles an hour