![](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 72 71" width="72"></svg>)
The two passenger and freight cars run from Party A and Party B at the same time and meet at 6 km from the midpoint. It is known that the speed of the freight car is three-quarters of the speed of the passenger car, and the two stations are in phase How many kilometers away?
Start at the same time, meet at the same time
The ratio of speed is the ratio of journey, that is, the journey of freight car = 3 / 4 of that of passenger car,
If the passenger car is 1, the freight car is 3 / 4
When meeting at a distance of 6 km from the midpoint, the passenger car travels 6 + 6 = 12 km more than the freight car
Bus trip = 12 △ 1-3 / 4 = 48 km
The whole journey = (1 + 3 / 4) × 48 = 84km
It takes 8 hours for passenger cars and 12 hours for freight cars. It is known that passenger cars travel 20 km more per hour than freight cars
How many kilometers per hour?
The whole journey is 20 (1 / 8-1 / 12) = 20 (1 / 24) = 480km
Passenger car 480 / 8 = 60 km / h
If you don't understand this question, you can ask,
A passenger train and a freight train run from a and B respectively. The passenger train runs 50 kilometers per hour, and the freight train is 8 kilometers slower than the passenger train. After the passenger train starts for one hour, the freight train starts from B, and after three hours, the two vehicles meet. How many kilometers are there between a and B?
50*1+3*(50+50-8)
=50+3*92
=50+276
=326 km
The passenger and freight cars leave from a and B at the same time and meet at the point 12km away from the midpoint. It is known that the ratio of passenger car travel to freight car travel is 9:8. How many km is the distance between a and B?
12 × 2 = 24 (km) 24 △ 917-817 = 24 △ 117 = 408 (km) a: the distance between a and B is 408 km
RELATED INFORMATIONS
- 1. The distance between a and B is 240 km. The passenger cars and freight cars start from a and B at the same time and run in opposite directions. They meet three hours later. The speed of the passenger cars is five-thirds of that of the freight cars. How many kilometers do the passenger cars and freight cars travel per hour
- 2. It is known that the speed ratio of the bus to the truck is 5:4, and the bus travels 60 kilometers per hour. How many kilometers are there between a and B?
- 3. The passenger car and the freight car run from a and B at the same time. They meet each other in five hours. After meeting, the passenger car goes to B in three hours. It is known that the freight car travels 63 kilometers per hour, and how many kilometers per hour does the passenger car travel?
- 4. The passenger car and the freight car run from a and B at the same time. They meet each other in five hours. After meeting, the passenger car goes to B in three hours. It is known that the freight car travels 63 kilometers per hour, and how many kilometers per hour does the passenger car travel?
- 5. The distance between a and B is 700 km. A bus and a freight car run from a and B at the same time. The speed of the bus is 80 km. The speed ratio of the bus to the freight car is 4:3. How long will the distance between the two cars be 280 km?
- 6. The speed of a freight car is 95% of that of a passenger car. Two cars are driving from two places at the same time. They meet 8 kilometers away from the midpoint to find the distance between the two places! We need formula, formula, not equation, not equation! And we need to write the truth, write the truth!
- 7. Passenger cars and freight cars start from the two places at the same time and meet each other in five hours. Freight cars travel 50 kilometers per hour and passenger cars 65 kilometers per hour. How long is the railway between the two places?
- 8. The length of A-B railway is 2775 km. Passenger cars and freight cars leave from the two places at the same time. The distance is 555 km in 12 hours. Passenger cars are 90 km per hour. What about freight cars? It is not listed in detail,
- 9. The distance between the two places is 720 kilometers, and the passenger cars and freight cars are running from both places at the same time. It is known that the passenger cars are 80 kilometers per hour, and the speed ratio of the passenger cars and freight cars is 4:3. After a few hours, the distance between the two cars is 20 kilometers?
- 10. The length of the railway between city a and city B is 435 meters. The passenger and freight trains start from the two cities at the same time and travel in opposite directions. The passenger trains travel 60 kilometers per hour and the freight trains 45 thousand per hour Then the above question, meters, how many hours after the two cars 15 kilometers apart?
- 11. The speed ratio of the passenger car to the freight car is 3:2, and the speed ratio of the passenger car to the freight car is 3:2
- 12. Train a runs 276 kilometers more in 10 hours than train B in 7 hours. If the two trains have the same speed, calculate the speed of the two trains
- 13. It takes about 15 hours for a train to leave Beijing and arrive in Guangzhou. After the train leaves, it will run at the original speed of 8 hours and then arrive in Wuhan. As the world's highest speed railway Wuhan Guangzhou high speed railway officially put into operation in December 2009, the average speed of the train from Wuhan to Guangzhou is more than 50 kilometers per hour, and the time required is also shortened by 4 hours Average speed from Beijing to Wuhan and average speed from Wuhan to Guangzhou after speed up
- 14. If the speed of the bus is 1.5 times that of the truck, then the distance between a and B & nbsp; stations is less than 20 km______ km．
- 15. Both trains run from a to B. It is known that the speed of car a is x km / h and that of car B is y km / h. After 3 hours, car B is 5 km away from B At this time, the distance between car a and ground B () km? A 3(-x+y)-5 B 3(x+y)-5 C3(-x+y)+5 D 3(x+y)+5 I want to ask why I chose C
- 16. If the integer solutions of the inequality system 7x − m ≥ 06x − n < 0 about X are only 1,2,3, then the integer pairs (m, n) suitable for the inequality system share () A. 49 pairs B. 42 pairs C. 36 pairs D. 13 pairs
- 17. Given that the solution set of inequality system x > 3, x > A is x > A, then the value range of a is () A.a3 D.a≥3 Please explain why
- 18. In the third quarter of last year, an engineering team undertook the glorious task of laying a section of 3 km long subway track. After laying 600 meters, the engineering team improved its technology and laid 10 meters more every day than before. As a result, it took 80 days to complete the task How many meters of track are laid every day after technology?
- 19. A school is going to organize 290 students to carry out field investigation. There are 100 pieces of luggage. The school plans to rent two types of luggage: type A and type B
- 20. Car 360 degree panoramic camera Some high-end cars are equipped with cameras on the right rear-view mirror and front, which are displayed on the navigation screen. Both xinxiaoke and Dongfeng nazhijie are highlighting this panoramic camera. I heard that Lifan 720 is original, and my corolla has been hung in front several times. I want to install one, but the 4S shop doesn't have one, and the decoration shop doesn't have one. Please help me with the refitting expert. Thank you very much!