SOLUTION: A man can paint a room, working alone, in 5 hours. His wife can do the same job in 4 hours. How long will it take them to paint the room if they work together?
Algebra ->
Rate-of-work-word-problems
-> SOLUTION: A man can paint a room, working alone, in 5 hours. His wife can do the same job in 4 hours. How long will it take them to paint the room if they work together?
Log On
Question 969354: A man can paint a room, working alone, in 5 hours. His wife can do the same job in 4 hours. How long will it take them to paint the room if they work together? Answer by solver91311(24713) (Show Source):
If A can do a job in x time periods, then A can do of the job in 1 time period. Likewise, if B can do the same job in y time periods, then B can do of the job in 1 time period.
