SOLUTION: a man paint a house in 4 days and his son paint the house in 6 days. how many days will both take to paint the house if they work together ?

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Question 993577: a man paint a house in 4 days and his son paint the house in 6 days. how many days will both take to paint the house if they work together ?
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
d, how many days if both work together

Rates are additive for agents together, and rate should be arranged in unit HOUSE%2FDAY.

1%2F4%2B1%2F6=1%2Fd

Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.
For similar and many other "joint work" problems see the lesson  Using fractions to solve word problems on joint work  in this site.

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