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3 May, 22:11

If it takes 21 minutes for 5 people to paint 7 walls how many minutes does it take 3 people to paint 5 walls

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Answers (2)
  1. 3 May, 23:48
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    21 divided by 7 equals 3

    3 minutes per wall for 5 people to paint
  2. 4 May, 00:04
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    21 minutes divided by 7 walls = 3 minutes per wall for 5 people.

    Assuming each worker has the same exact productivity, one person would take 15 minutes to paint a single wall (3 minutes x 5 people to get the amount of time for 1 worker per wall).

    15 minutes for one worker multiplied by 5 walls = 75 minutes for one worker. Divide 75 minutes by 3 people = 25 minutes to paint all 5 walls with 3 people.
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