1.

3. A and B .con dos o pieceof amork an 28 days. B and Ccan do it in 24 days whilecand a can finish it in 36days. In how many days.car? A, B and Coginish it, itthey call work together. InLour many dous quill eachze of them Einish it workingzione? 0

Answer»

wrong



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