Question
Rael and Mark take 4 days to assemble a toy car. Mark and David take 6 days to build the same car while Rael and David take only 3 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

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