SOLUTION: Sally paints a house in 4 hours. Ben paints the same house in 6 hours. If they worked together, how long will it take to paint the house?

Question 356244: Sally paints a house in 4 hours. Ben paints the same house in 6 hours. If they worked together, how long will it take to paint the house?
Found 2 solutions by mananth, ewatrrr:
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
sally - 4hours
she does 1/4 of the job in 1 hour
..
Ben = 6 hours
he does 1/6 of the job in 1 hour
..
together they do 1/4 + 1/6 of the job in 1 hour
=(3+2)/12
=5/12 of the job in 1 hour
so they will together take 12/5 hours
=2.4 hours
....
m.ananth@hotmail.ca
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
Hi,
.
Sally paints a house in 4 hours. Ben paints the same house in 6 hours
Let x represent time it would take together
.

.

.

.
together
x = 2.4 hrs
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