Asked by jessica

Tomas can do a job in 4 hours. julia can do the same job in 6 hours. how many hours will it take the two of them to do the job if they worked together?

Answers

Answered by bobpursley
In 24 hours, they can do 10 jobs (numberjobs=24/4 + 24/6)

so it takes 2.4 hours (24/10) hours per job with both of them working.
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