Question
Cole and Peter, together, can clean a storeroom in 4 hours. If Cole is cleaning the storeroom alone, he can only complete the task in 7 hours. How long will Peter take to clean a storeroom all by himself? Express your answer in mixed number.
3 m

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Cole and Peter, together, can clean a storeroom in 4 hours. If Cole is cleaning the storeroom alone, he can only complete the task in 7 hours. How long will Peter take to clean a storeroom all by himself? Express your answer in mixed number.