Question
Perry and Jack take 3 days to assemble a toy house. Jack and Luke take 6 days to build the same house while Perry and Luke take only 4 days. How many complete days would the three of them take to build the same toy house?
4 m

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Perry and Jack take 3 days to assemble a toy house. Jack and Luke take 6 days to build the same house while Perry and Luke take only 4 days. How many complete days would the three of them take to build the same toy house?