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Answered

Samantha can paint a room in 3 1/2 hours.Her brother can paint the same room in 2hours.How long would it take them to paint the room if they work together?​

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BERTHIVEIN

Answer: 1 3/11 hrs

1/3.5 + 1/2 = 1/x

4+7/14 = 1/x

11/14 = 1/x

11x = 14

11x/11 = 14/11

x = 14/11 or 1 3/11 hrs

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