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Mathematics, 22.03.2021 15:50 Emiann222

2. Sheila can frame in a room in 5 hours. David can do the same job in 4 hours. Working together, how long would it take them to frame in a room?

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2. Sheila can frame in a room in 5 hours. David can do the same job in 4 hours. Working together, h...
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