SOLUTION: The time to complete a project is inversely proportional to the number of people who are working on the project. A class project can be completed by 5 students in 28 days. In order
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Question 831190: The time to complete a project is inversely proportional to the number of people who are working on the project. A class project can be completed by 5 students in 28 days. In order to finish the project in 7 days, how many more students should the group add? Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! A class project can be completed by 5 students in 28 days.
In order to finish the project in 7 days, how many more students should the group add?
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Find the number of man-days required to complete the project:
5 * 28 = 140 man-days
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Let s = no. of additional students required to do it in 7 days
7(s+5) = 140
divide both sides by 7
s + 5 = 20
s = 15 more students required
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