SOLUTION: John can paint a house in 6 days. It would take Tom 9 days to do the same work. If John works alone for 2 days and then is joined by Tom, how much total time is required for painti

Question 722498: John can paint a house in 6 days. It would take Tom 9 days to do the same work. If John works alone for 2 days and then is joined by Tom, how much total time is required for painting entire house?
Answer by josgarithmetic(39613) (Show Source): You can put this solution on YOUR website!
John alone for 2 days: amount of jobs
John plus Tom for d days: amount of jobs

The sum of those two "amount of jobs" must be 1 when the job is done.

Solve for d.
The total time is .
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