At 9 o’clock in the morning, a car left the river port on the highway at a speed of 72 km / h.

At 9 o’clock in the morning, a car left the river port on the highway at a speed of 72 km / h. Half an hour later, a motorcycle followed her at a speed of 60 km / h. How far will they be from each other at 10 am?

Let’s find the time of movement of the car:

10 – 9 = 1 hour.

The distance traveled by the car will be:

72 * 1 = 72 km.

The travel time of the motorcycle is:

10 – 9.5 = 0.5 hours.

Distance traveled:

60 * 0.5 = 30 km.

The distance between the car and the motorcycle will be equal to the difference between the distances traveled separately:

72 – 30 = 42 km.

Answer: the required distance is 42 km.