Question
Pierre and Warren, together, can clean a hut in 4 hours. If Pierre is cleaning the hut alone, he can only complete the task in 10 hours. How long will Warren take to clean a hut all by himself? Express your answer in mixed number.
3 m

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Pierre and Warren, together, can clean a hut in 4 hours. If Pierre is cleaning the hut alone, he can only complete the task in 10 hours. How long will Warren take to clean a hut all by himself? Express your answer in mixed number.