Unknown Rate Work Word Problems
Review the Lesson | MATHguide homepage Updated April 7th, 2019

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

Alone, Shawna can do a certain job in 19 weeks. When Shawna and Mary work together, they can finish the same job in 14 weeks.

How long would it take Mary to do the job alone?