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 hour.


Alone, Mark can do a certain job in 10 hours. When Mark and Thadeus work together, they can finish the same job in 5 hours.

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


hours