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It takes 12 men 5 days to complete a job. (a) Work out how many days it would take 3 men to complete the same job. I know that the answer is 20 but I need an explanation​

It takes 12 men 5 days to complete a job. (a) Work out how many days it would take 3 men to complete the same job. I know that the answer is 20 but I need an explanation​
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It takes 12 men 5 days to complete a job.

(a) Work out how many days it would take 3 men to complete the same job.

I know that the answer is 20 but I need an explanation​

asked
User Andreagalle
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7.8k points

1 Answer

7 votes
12 men, 5 days.
If you divide the amount of laborers by 4, you must multiply the time it takes by 4. Thus 12/4=3 men and 5*4= 20 days.
answered
User Migwell
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7.8k points
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