Delayed Start Work Word Problems
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Answer the following work problem. Report your answer to the nearest tenth of a hour.


Petra can do a certain job in 9 hours. Henry can do the same job in 10 hours.

Petra and Henry work together to complete the same job. However, Petra starts working 1 hours after Henry starts to work. How many hours will it take for them to complete the job once Henry starts to work?


hours