Question

At 1:00 p.m., Carla and Judy drive (without stops) in the same direction at 64 miles per hour and 60 miles per hour, respectively, to visit Denise in Buncombe County. At 1:30 p.m., Carla passes Judy. How many miles is the gap between Carla and Judy?

Answer 1

28 miles

Explanation:

Carla:

Carla has a speed of 64 miles per hour and starts driving at 1:30 p.m., which means she has been driving for 30 minutes (0.5 hours). Therefore, Carla has traveled a distance of 64 miles per hour * 0.5 hours = 32 miles.

Judy:

Judy has a speed of 60 miles per hour and starts driving at 1:00 p.m. Carla passes Judy at 1:30 p.m., which means Judy has been driving for 30 minutes (0.5 hours) longer than Carla. Therefore, Judy has traveled a distance of 60 miles per hour * 1 hour = 60 miles.

Since Carla passed Judy, the gap between them is the difference in the distances they have traveled. Therefore, the gap between Carla and Judy is 60 miles - 32 miles = 28 miles.