Delayed Start Work Word Problems
Review the Lesson | MATHguide homepage Updated November 27th, 2016

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Answer the following work problem. Report your answer to the nearest tenth of a day.

Mark can do a certain job in 5 days. Alice can do the same job in 7 days.

Mark and Alice work together to complete the same job. However, Mark starts working 4 days after Alice starts to work. How many days will it take for them to complete the job once Alice starts to work?