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It takes 28minutes for 7 people to paint 7 walls. How many minutes does it take 14 people to paint 14 walls?

 Mar 28, 2020
 #1
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You doubled the people ...and you doubled the walls     time should still be 28 min

 (7people x 28 min)/7 wall          /   ( 14 people / 14 wall)  =  28 min

 Mar 28, 2020

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