Mathematics, 05.05.2020 05:38 ronnie7898

Tanya and Tim can clean the house in 3 hours. Their 3 children can do the same in 6 hours. How long would it take to clean the house if the whole family will do it together?

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Tanya and Tim can clean the house in 3 hours. Their 3 children can do the same in 6 hours. How long...