The six workers' working group would order jobs completed within 21 working days. How many workers must be added to complete a contract in 14 working days?

Correct answer:

n =  3

Step-by-step explanation:

1/6/21·(n+6)·14 = 1

4.666667n = 14

n = 14/4.66666667 = 3

n = 3

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