Question
It takes Vanessa 9 hours to sew a jacket by herself. If Tammy helps her, they will take 3 hours to sew the jacket. How long will Tammy take to sew the jacket by herself? Express your answer in mixed number.
3 m

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It takes Vanessa 9 hours to sew a jacket by herself. If Tammy helps her, they will take 3 hours to sew the jacket. How long will Tammy take to sew the jacket by herself? Express your answer in mixed number.