SOLUTION: Sally can paint a room in 6 hours while it takes Steve 7 hours to paint the same room. How long would it take them to paint the room if they worked together?
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Question 1162382: Sally can paint a room in 6 hours while it takes Steve 7 hours to paint the same room. How long would it take them to paint the room if they worked together?
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
If entity A can do a complete job in
time periods then entity A can do
of the job in one time period. Similarly, entity B, who can do the same complete job in
time periods, can do
of the job in one time period.
Working together, they can perform
of the job in one time period.
Applying the LCD of the two fractions:
.
So, working together they can complete the whole job in:
time periods.
John

My calculator said it, I believe it, that settles it

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