Workhorses

A team of colleagues did the work in 20 days. After adding two colleagues from the beginning, the team completed the work in 15 days. How many members has the colleague team?

Correct answer:

n =  6

Step-by-step explanation:


20n=15(n+2)

20·n=15·(n+2)

5n = 30


n = 30/5 = 6

n = 6

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Showing 1 comment:
Alicia
i need help





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