sally can paint a room in 6 hours while it takes steve 5 hours to paint the same room. how long would it take them to paint the room if they worked together?

Answer 1

Let's assume the wall is 300 ft² (this is arbitrary... any reasonable number will work)

Then, Sally can paint 300 ft²/6 hours or 50 ft²/hour

and Steve can paint 300 ft²/5 hours or 60 ft²/hour

Together, they can paint 110 ft²/hour, So, 300 ft²/(110ft²/hour) = 2.73 hours