Question

Two cars start from the same place at the same time and travel in the same direction. One car was travelling at the same speed of 60 km/h while another was travelling at 80 km/h. How far apart will they be after 30 minutes?

Answer 1

To find the distance between the two cars after 30 minutes, we first need to calculate how far each car has traveled in that time.

The first car is traveling at a speed of 60 km/h, which means it covers a distance of 60 kilometers in one hour (or 60/60 = 1 kilometer per minute). After 30 minutes, it will have traveled a distance of (1 kilometer/minute) × 30 minutes = 30 kilometers.

The second car is traveling at a speed of 80 km/h, which means it covers a distance of 80 kilometers in one hour (or 80/60 = 4/3 kilometers per minute). After 30 minutes, it will have traveled a distance of (4/3 kilometers/minute) × 30 minutes = 40 kilometers.

Therefore, the two cars will be 40 kilometers - 30 kilometers = 10 kilometers apart after 30 minutes.