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22 January, 17:33

The time t (in hours) that it takes a group of volunteers to build a

playground varies inversely with the number n of volunteers. It takes

a group of 10 volunteers 12 hours to build the playground. How long

would it take a group of 15 volunteers?

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Answers (2)
  1. 22 January, 18:40
    0
    8 hours

    Step-by-step explanation:

    10 * 12 = 15 * t

    t = 8
  2. 22 January, 19:23
    0
    It will take 9 hours
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