SOLUTION: sally can paint a room in 4 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?

SOLUTION: sally can paint a room in 4 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 478839: sally can paint a room in 4 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 Alan3354(69443) (Show Source): You can put this solution on YOUR website!
This is a parallel input problem, commonly seen in pumps and flow rates and electrical resistances.
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Hint: Consider what part of a room Sally paints per hour, and what part Steve does per hour.

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