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) About Me  (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