Question
John and Rael take 2 days to assemble a toy house. Rael and Julian take 5 days to build the same house while John and Julian take only 2 days. How many complete days would the three of them take to build the same toy house?
4 m

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John and Rael take 2 days to assemble a toy house. Rael and Julian take 5 days to build the same house while John and Julian take only 2 days. How many complete days would the three of them take to build the same toy house?