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Please help!!!! Hannah can paint a room in 9 hours. Destiny can paint the same room in 15 hours. How long does it take for both Hannah and Destiny to paint the room it they are w…

Please help!!!! Hannah can paint a room in 9 hours. Destiny can paint the same room in 15 hours. How long does it take for both Hannah and Destiny to paint the room it they are w…
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Please help!!!! Hannah can paint a room in 9 hours. Destiny can paint the same room in 15 hours. How long does it take for both Hannah and Destiny to paint the room it they are working together?

User Faustino Gagneten
by
7.8k points

1 Answer

4 votes
9/2= 4.5
15/2= 7.5
4.5+7.5=12

12 Hours
User Icza
by
8.4k points
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