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Work Word Problem- how do you solve this?

Hannah and Sarah can finish cleaning the house in 3 hours. Hannah started cleaning alone, and after 1 hour, Sarah came in. Hannah then left after 1 hour and 30 minutes. Sarah then completed the work by herself in 9/5 hours. What part of the work is done if Hannah will work for 2 hours and Sarah for 6/5 hours?

Please help me!

Note by Isabelle Calalang
3 weeks, 2 days ago

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