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8 December, 09:28

If it takes Sally 5 hours to clean the house, how long will it take Sally and her two friends to do the job if they work at the same rate?

A. 1 1/3

B. 1 2/3

C. 2 1/3

D. 2 2/3

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Answers (1)
  1. 8 December, 09:42
    0
    Sally (1 person) took 5 hours. how long will it take 3 people?

    5 hours / 3 people = 5/3 = 1 2/3

    The answer is B
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