Question

Manuel traveled 8 hours nonstop to Mexico, a total of 424 miles. He took a train part of the way, which averaged 60mph, and then took a bus the remaining distance, which averaged 40mph. How long was Manuel on the train (in hours)?

Answer 1

60*x + 40*y = 424
x + y = 8
-> x, y

(x,y is time with train and bus)