The train travels 58 kilometers per hour, and the car 62 kilometers per hour. At the same time, they depart from each other to know when the distance between a and B is 672 kilometers

The train travels 58 kilometers per hour, and the car 62 kilometers per hour. At the same time, they depart from each other to know when the distance between a and B is 672 kilometers


Let's meet in X hours
58X+62X=672
X=5.6
Unit hour
Don't forget to answer the questions



A passenger car and a freight car run in the opposite direction from the same place at the same time. After 4 hours, the distance is 400 kilometers. It is known that the passenger car runs 58 kilometers per hour, and how many kilometers does the freight car run per hour?


400 △ 4-58 = 100-58, = 42 (km). A: the freight car travels 42 km per hour



A train can travel 58 and 1 / 2 kilometers in 3 / 4 hours
How many kilometers is the distance between the two places?


The speed of the train is (58-1 / 2) / (3 / 4) = 78 (km / h)
Then calculate the distance from a to B: 78 * (3-1 / 3) = 260 (km)
A: the distance between the two places is 260 km



From a to B, it takes 8 hours for a bus to complete the whole journey, and 10 hours for a truck. Now the bus starts for 2 hours, and then the truck starts. How many hours after the truck starts, the two cars meet?


Let's suppose that the two trucks meet after X hours of departure. From the meaning of the question, we get 18 × (x + 2) + 110x = 118X + 14 + 110x = 1940x = 34, x = 103. Answer: the two trucks meet after 103 hours of departure