To solve the problem, it's best to use arithmetic, or one variable equation The ratio of truck speed and car speed is 3:8. The two cars start from a and B at the same time and run in opposite directions. They meet in three eighths of an hour. If the two cars start from a and B at the same time and run in the same direction, the truck speed is in the front and the car is in the back. Then the car needs () hours to catch up with the truck How to solve the problem

To solve the problem, it's best to use arithmetic, or one variable equation The ratio of truck speed and car speed is 3:8. The two cars start from a and B at the same time and run in opposite directions. They meet in three eighths of an hour. If the two cars start from a and B at the same time and run in the same direction, the truck speed is in the front and the car is in the back. Then the car needs () hours to catch up with the truck How to solve the problem

The sum of the speeds of trucks and cars is 3 + 8 = 11
Distance between two cars: 11 * 3 / 8 = 33 / 8
In the same direction, it takes time to catch up: (33 / 8) / (8-3) = 33 / 40 hours