Question
Tom and Tim take 6 days to assemble a toy car. Tim and Ryan take 3 days to build the same car while Tom and Ryan take only 4 days. How many complete days would the three of them take to build the same toy car?
4 m

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Tom and Tim take 6 days to assemble a toy car. Tim and Ryan take 3 days to build the same car while Tom and Ryan take only 4 days. How many complete days would the three of them take to build the same toy car?