Of the two cities, the distance between which is 390 km, two motorcycles drove towards each other at the same

Of the two cities, the distance between which is 390 km, two motorcycles drove towards each other at the same time and met 3 hours later, one motorcycle was driving at an average speed of 85 km / h find the average speed of the second motorcycle

1. Determine the distance that the first motorcycle traveling at an average speed of 85 km / h will travel 3 hours before the meeting:

3 * 85 = 255 (km).

2. Determine the distance that the second motorcycle will travel in 3 hours as the difference between the total distance and the distance traveled by the first motorcycle:

390 – 255 = 135 (km).

3. Determine the average speed of the second motorcycle:

135: 3 = 45 (km / h).

Answer: The average speed of the second motorcycle is 45 km / h.