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

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