Question
Neave can paint a storeroom in 12 hours. Howard can paint the same storeroom in 4 hours. How long will it take for both of them to paint the same storeroom together?
2 m

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Neave can paint a storeroom in 12 hours. Howard can paint the same storeroom in 4 hours. How long will it take for both of them to paint the same storeroom together?