It takes 5 hours for car a to go from place a to place B, and 4 hours for car B to go from place B to place A. car a and car B are facing each other from both places at the same time. After a few hours, the two cars meet
Hello
1 ÷ (1 / 5 + 1 / 4) = 1 ÷ 9 / 20 = 20 / 9 hours
After 20 / 9 hours, the two cars meet
If you don't understand this problem, you can ask. If you are satisfied, remember to adopt it
I wish you progress in your study!
Party A and Party B are going from a and B at the same time. After 16 hours of meeting, Party A continues to drive for 20 hours to arrive at B. after meeting, Party B passes by
How many hours to arrive at a
16 * 16 / 20 = 12.8 hours
RELATED INFORMATIONS
- 1. A, B two cars, a from a to B, B from B to a, at the same time, the two cars meet 1.5 hours later, after meeting, a car still need 2 hours to arrive at B, B car also need 9 / 8 hours to arrive at a, if a, B two places apart 210 km, try to find a, B two car speed
- 2. Transport a batch of goods, a car 10 hours to complete, B car 8 hours to complete, now two cars together, a few hours to transport 1 / 2 of the money goods?
- 3. For a pile of goods, it takes 6 hours for car a to transport alone; for car B to transport alone, it takes 8 hours. Now, how many hours does it take for car a and car B to transport 7 / 8 of this pile of goods together? I'm in a hurry
- 4. A pile of goods can be transported in 6 hours by car a alone, and in 8 hours by car B alone. Now how many hours can half of the goods be transported by car a and car B together?
- 5. For a batch of goods, it takes 8 days for team a to transport alone, and 12 days for team B to transport alone. Now team a has transported alone for 4 days, and team B continues to transport, and it will take several days to complete
- 6. When a worker processes a batch of parts, he completes one fifth of the task in the first day, the remaining one third in the second day, and 20 more in the second day than in the first day. How many parts are there in total We need to be specific
- 7. A worker processes a batch of machine parts. He completes 15 of the task in the first day, 13 of the rest in the second day, and 56 in the first two days. How many parts are there in this batch?
- 8. A company has two transportation teams. The first team has 20 original cars, and the second team has 38 original cars. Now 30 newly purchased cars are allocated to these two teams, so that the total number of cars in the second team is three times that of the first team after allocation. How should we allocate them?
- 9. The transport team has 45 vehicles carrying 5 tons and 4.5 tons, of which the number of vehicles carrying 5 tons is 3.5 times that of vehicles carrying 4.5 tons. How many of these two vehicles are there It's the problem of chickens and rabbits in the same cage Please be clear
- 10. There are three vehicles in the fleet of a factory to organize the circulation transportation for the five workshops a, B, C, D and E. as shown in the figure, the number marked is the number of loading and unloading workers required in each workshop. In order to save manpower and let some loading and unloading workers follow the car, the minimum arrangement is as follows______ There are three stevedores to meet the needs of each workshop
- 11. Party A and Party B travel from AB to each other at the same time. After meeting for 5 hours, Party A will travel for 4 hours to arrive at place B. how many hours will Party B have to travel to arrive at place a? Lie equation Suppose X
- 12. An automobile transportation company has two fleets of a and B, with a total of 50 vehicles. Due to business needs, 20 vehicles are transferred from team B to support team A. at this time, team a has% of the total number of vehicles An automobile transportation company has two fleets of a and B, with a total of 50 vehicles. Due to business needs, 20 vehicles are transferred from team B to support team A. at this time, the number of vehicles in team a is just twice that of team B. how many vehicles did team a and team B have? An automobile transportation company has two teams of 150 vehicles, team a and team B. due to business needs, 20 vehicles are transferred from team B to support team A. at this time, the number of vehicles in team a is just twice that of team B. how many vehicles did team a and team B have?
- 13. Party A and Party B have 150 vehicles in total. Due to the need of transportation task, 30 vehicles are transferred from Party A for support Team B makes team B's car four times that of team A. how many cars are there in each team
- 14. A and B leave from both places at the same time. Car a travels 45 kilometers per hour and car B 40 kilometers per hour. When the two cars meet, they are 20 kilometers away from the destination How many kilometers are there between the two places?
- 15. The length of the railway between city a and city B is 435 km. The two passenger and freight cars start from the two cities at the same time and travel in opposite directions. The passenger cars travel 60 km per hour, and the freight cars 45 km per hour. How many hours later is the distance between the two cars 15 km
- 16. The distance between the two cities is 225 km. A bus and a truck leave the two cities at the same time. They meet in 2 / 3 hours. The speed of train and bus is 9:11
- 17. There are two trains, one is 130m long and the speed is 23m / S; the other is 250m long and the speed is 15m / s. now the two trains are facing each other and it is necessary for them to meet and leave______ s.
- 18. There are two trains, one 180 meters long, 24 meters per second; the other 220 meters long, 26 meters per second Now the two cars are facing each other. How many seconds does it take for the two cars to completely leave?
- 19. 1 / 4 of a is equal to 30% of B. A is 48, B is what?
- 20. A clothing design factory plans to produce 640 suits in 4 days, and the actual work efficiency has been increased by 10%. How many suits are actually produced every day?