Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
Help with homework, math question?
Can someone please tell me what formula is used to answer this question
If Sam can do a job in 4 days that Lisa can do in 6 days and Tom can do in 2 days, how long would the job take if Sam, Lisa, and Tom worked together to complete it?
I don't want the answer , I just want to know how to get the answer. Thanks.
Sorry that is not it. But thanks for trying. This is the answer 1.09 days , I just don't know how to get there.
2 Answers
- 1 decade agoFavorite Answer
From the information given, it can be concluded that:
Sam can do 1/4 of the job in one day.
Lisa can do 1/6 of the job in one day.
and Tom can do 1/2 of the job in one day.
In one day, if they work together they can complete 11/12(1/4+1/6+1/2) of the job. To finish the other 1/12 of the job, it will take 1/11 of the second day, because 1/11 times 11/12 is equal to the other 1/12 necessary to complete the job.
If they worked together, it would take 1 1/11 days.
Check: (1/4+1/6+1/2)*(1 1/11) = 1
- 1 decade ago
Might be 4.
Because the work done 3 togather might be the average of thier individual capacity.so 4+6+2/3
=4.
