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17 February, 07:54

it takes 47 minutes for 7 people to paint 7 walls. how many minutes does it take 20 people to paint 20 walls?

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  1. 17 February, 08:00
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    7 people, 7 walls, 48 minutes

    Each person paints 1 wall in 48 minutes

    20 persons, 20 walls

    Each person can paint 1 wall in 48 minutes so it will take 48 minutes.
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