How about the distance and pursuit in the fifth grade of primary school? 1. A and B start from a certain place at the same time and travel in the same direction. A's speed is 12 kilometers per hour, which is 3 kilometers slower than B's. it takes 0.25 hours for B to repair the car on the way. When B catches up with a, how many hours did a ride? 2. The apprentice makes 8 parts per hour, and the master makes 14 parts per hour. The apprentice makes 24 parts first, and then the master starts to process them. How many hours after the master makes them, do they make the same parts? 3. They worked 8 hours. The apprentice made 8 pieces per hour, and the master took 3 hours to repair the machine. After work, the master made 11 more than the apprentice. How many pieces per hour does the master process?

How about the distance and pursuit in the fifth grade of primary school? 1. A and B start from a certain place at the same time and travel in the same direction. A's speed is 12 kilometers per hour, which is 3 kilometers slower than B's. it takes 0.25 hours for B to repair the car on the way. When B catches up with a, how many hours did a ride? 2. The apprentice makes 8 parts per hour, and the master makes 14 parts per hour. The apprentice makes 24 parts first, and then the master starts to process them. How many hours after the master makes them, do they make the same parts? 3. They worked 8 hours. The apprentice made 8 pieces per hour, and the master took 3 hours to repair the machine. After work, the master made 11 more than the apprentice. How many pieces per hour does the master process?

1. 12 × 0.25 △ 3 + 0.25 = 1.25 (hour)
2. 24 ÷ (14-8) = 4 (hours)
3. (8 × 8 + 11) / (8-3) = 15

On the fifth grade of primary school distance application problems? Cuboid application problems
1. The distance between the two cities is 1530 km. Buses and trucks are driving from city a to city B at the same time. The speed of buses is 50 km per hour, and that of trucks is 40 km per hour. When the buses arrive at city B, they immediately drive back to city a according to the original road. They meet the trucks on the way. How many hours do the buses meet the trucks?
2. A cuboid oil tank with a lid is 60cm high. The bottom surface is a square with a circumference of 1.2m. How many square meters of iron sheet does it need to process this oil tank? If half a tank of oil is filled in this oil tank, how many liters of oil is it?
3. Two cars a and B leave from a and B at the same time. Two hours after departure, the two cars are 141 kilometers apart. Five hours after departure, the two cars meet. How many kilometers are there between a and B?

2. Suppose: bottom side length = x m, 4x = 1.2x = 0.3, height = 60 cm = 0.6 m. This oil tank needs at least 2 × 0.3 × 0.3 + 1.2 × 0.6 = 0.9 square m, oil loading = 3 × 3 × 6 / 2 = 27 cubic decimeters = 27 liters. 3. A + B = 141 △ (5-2) = 47 km / h, AB distance = 47 × 5 = 235 km

The application of distance in the fifth grade of primary school
The distance between a and B is 360 kilometers. A car travels 60 kilometers per hour, while B city takes 2 hours to repair. As a result, the two cars arrive at B at the same time. How many kilometers per hour does B car travel?

Set car B to travel x kilometers per hour
360÷60-2＝360÷x
x=360÷4
x=90