Question
Flynn and Fred take 4 days to assemble a toy car. Fred and Rael take 5 days to build the same car while Flynn and Rael take only 4 days. How many complete days would the three of them take to build the same toy car?
4 m

Click button first when a symbol is required. X

Flynn and Fred take 4 days to assemble a toy car. Fred and Rael take 5 days to build the same car while Flynn and Rael take only 4 days. How many complete days would the three of them take to build the same toy car?