Unknown Rate Work Word Problems
Review the Lesson | MATHguide homepage Updated June 18th, 2023

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


Alone, Kris can do a certain job in 27 minutes. When Kris and Alice work together, they can finish the same job in 14 minutes.

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


minutes