A certain job can be done by 72 men in 100 days. There were 80 men at the start of the project but after 40 days, 30 of them had to be transferred to another project. How long will it take the remaining workforce to complete the job?

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A certain job can be done by 72 men in 100 days. There were 80 men at the start of the project but after 40 days, 30 of them had to be transferred to another project. How long will it take the remaining workforce to complete the job?

Mathematics
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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i get 80 days but i could be wrong
yes the answer is 80,but how come, i really forgot how to solve work problem
there is probably a snappy way to do this, but i don't know of one. i said "if 72 men take 100 days to complete 1 job, then each man completes \[\frac{1}{7200}\]of the job per day"

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Other answers:

you had 80 men working for 40 days and \[\frac{80\times 40}{7200}=\frac{4}{9}\] meaning they completed 4/9 th of the job, leaving 5/9 to be completed.
now 30 leave, so there are 50 men left, and we need to solve \[\frac{50\times x}{7200}=\frac{5}{9}\] and that gives \[x=80\]
like i said, there is probably a snappier way to do it
i should recall to solve this kind of problem, thanks then :D

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