SOLUTION: It took two people to complete carpeting in 10 days. How many more carpenters need to be hired to complete the same job in 4 days?

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Question 1066910: It took two people to complete carpeting in 10 days. How many more carpenters need to be hired to complete the same job in 4 days?
Answer by ikleyn(52776) About Me  (Show Source):
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It took two people to complete carpeting in 10 days. How many more carpenters need to be hired to complete the same job in 4 days?
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1.  "It took two people to complete carpeting in 10 days"  --->  it means that the entire job is 2*10 = 20 man-days.


2.  To complete it in 4 days, 20%2F4 = 5 workers are needed.


3.  Since you just have two workers ready, you need 5-2 = 3 additional carpenters.


Answer.  3 additional carpenters are needed.