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14 February, 16:26

Solve using rational equations:

James, Kelly, Hector, and Kyla are painting a house. James could paint the house in 9 hours, Kelly could paint it in 7 hours, Hector could paint it in 6 hours, and Kyla could paint it in 10 hours. How long will it take them to paint it together?

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Answers (2)
  1. 14 February, 17:16
    0
    (1/9+1/7+1/6+1/10) * x=1

    x=315/164 hour

    Answer: It takes 315/164 hours.
  2. 14 February, 18:01
    0
    10+6+7+9=32

    32 hours for painting
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