Question
Albert and Andy, together, can clean a bedroom in 3 hours. If Albert is cleaning the bedroom alone, he can only complete the task in 10 hours. How long will Andy take to clean a bedroom all by himself? Express your answer in mixed number.
3 m

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Albert and Andy, together, can clean a bedroom in 3 hours. If Albert is cleaning the bedroom alone, he can only complete the task in 10 hours. How long will Andy take to clean a bedroom all by himself? Express your answer in mixed number.