Question
Vincent and Jenson take 4 days to assemble a toy train. Jenson and Michael take 4 days to build the same train while Vincent and Michael take only 5 days. How many complete days would the three of them take to build the same toy train?
4 m

Click button first when a symbol is required. X

Vincent and Jenson take 4 days to assemble a toy train. Jenson and Michael take 4 days to build the same train while Vincent and Michael take only 5 days. How many complete days would the three of them take to build the same toy train?