Asked by Anonymous

John takes one hour more than Rikki to rake the leaves from their yard in the fall. If the two work together, they can rake the leaves in 2 hours. How long does it take John, working alone, to rake the leaves? Round to the nearest tenth of an hour.

Answers

Answered by Steve
If John takes x hours, then Rikki takes (x-1) hours, and we have

1/x + 1/(x-1) = 1/2
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