Question
Abi and Tammy take 3 hours to clean the house together. If Abi takes 5 hours to clean the house on her own, how long will it take Tammy to clean the house alone?
3 m

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Abi and Tammy take 3 hours to clean the house together. If Abi takes 5 hours to clean the house on her own, how long will it take Tammy to clean the house alone?