Melinda is taking a 1200-mile trip with her family to visit their cousins. How much time will they save if they drive 60 miles an hour instead of 50 miles an hour? Let's be accurate as possible.
Going 60 mph, the trip would take 1200 - mile trip / 60 miles an hour = 20 hours. Going 50 mph, the trip would take 1200 - mile trip / 50 miles an hour = 24 hours. Melinda’s family would save 24 – 20 = 4 hours.
The answer: 4.