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.
How much time passes until the second bus catches up with the first bus?
When second bus starts, first bus allready passed 40 miles, in 2 hours senocd bus will be on 120 miles distance, and first on 120 miles. Answer: 2 hours