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05-10-2017
Mathematics

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If 6 men can do a piece of work in 7 days, in how many men are needed to do the work in 21 days?

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random0boy0is0nobruh random0boy0is0nobruh

09-10-2017

6:7
x:21

Proportion: x/6=21/7

x/6=3
x=18

18 men are needed.

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