Question

Two buses are traveling to a state park. One bus leaves the terminal at 4:00 p.m. and travels at 40 miles per hour. The second bus leaves the terminal at 5:00 p.m. and travels at 60 miles per hour.
At what time does the second bus catch up with the first bus?

Answer 1

When second bus starts, first bus already passed 40 miles, in 2 hours second bus will be on 120 miles distance, and first on 120 miles.

Answer: 2 hours