Help Me with this problem! Please

Question

A freight train requires 2.5 hours longer to make a 300-mile journey than an express train does. If the express train averages 20 miles per hour faster than the freight train, how long does it take the express train to make the trip?

Answer 1

E=60 mph, F=40 mph

300/60= 5 hours for the express train

300/40 = 7.5 hours for the freight train

7.5 =5 +2.5

time = distance divided by speed