Question
Eric and John, together, can clean a storeroom in 5 hours. If Eric is cleaning the storeroom alone, he can only complete the task in 9 hours. How long will John take to clean a storeroom all by himself? Express your answer in mixed number.
3 m

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Eric and John, together, can clean a storeroom in 5 hours. If Eric is cleaning the storeroom alone, he can only complete the task in 9 hours. How long will John take to clean a storeroom all by himself? Express your answer in mixed number.