I know that the speed of the local train is five sixths of that of the express train. The two trains are facing each other and meet at a distance of 4km from the midpoint. How far is it

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• 1. The speed of car a is 75% of that of car B. the two cars are going towards each other at the same time from AB and meet at 5km away from the midpoint. How many kilometers is the distance between AB and ab? What is the speed of each car?
• 2. It is known that a goes from a to B and B goes from B to a. the ratio of the walking speed of a and B is 6:5. As shown in the figure, M is the midpoint of ab. there is a point C 26 km away from m and a point D 4 km away from M. anyone who passes through C has to slow down 14 and speed up 14 when passing through D. now a and B start at the same time and arrive at the same time. How many kilometers is the distance between a and B?
• 3. Party A and Party B walk from ab at the same time. When Party A walks at the midpoint of two places, Party B still has 1 / 3 of the distance from the midpoint of the whole journey. What is the speed ratio of Party A and Party B?
• 4. The fast and slow trains start from both places at the same time and run in opposite directions. They meet at 4km from the midpoint. The speed of the slow train is 6 / 7 of that of the fast train. How about the distance between the two places?
• 5. How many kilometers is the distance between the two stations known to be 4 kilometers?
• 6. The two trains leave from a and B and meet at 48km from the midpoint after 4 o'clock. The speed of the slow train is five seventh of that of the fast train. What are the speeds of the fast train and the slow train?
• 7. B and B leave from ab at the same time. When they meet, the distance ratio of B and B is 6:5. After meeting, B is 11 kilometers faster than before, As a result, the two vehicles arrive at the destination at the same time. It is known that Party B has a total of 9 hours Last year, there were 600 red goldfish and black goldfish in the pond. This year, a quarter of the red goldfish swam away, while the number of black goldfish increased by a third. Therefore, there are 534 red goldfish and black goldfish in the pond this year. How many of them are red goldfish?
• 8. The speed ratio of a and B is 5:4 when they meet in two hours. The distance between AB and a is 270km. How many kilometers do a and B travel each hour?
• 9. A and B two cars from AB two places at the same time, opposite, two car speed and distance between the two places When the two cars meet in the middle of the way, the distance between the two cars is 8:7. After the meeting, the two cars immediately return to their respective starting point. At this time, the handlebar speed of car a is increased by 25%, while the speed of car B remains unchanged. When car a returns to a, car B is still four fifths of an hour away from place B (1) The speed of car B is () km (2) How many km is the distance between the two places?
• 10. After practice, Ding Ding wrote 15 more words per minute than before. It is known that Ding Ding now writes twice as many words per minute as before. How many words per minute did he write?
• 11. Party A and Party B ride bicycles from both places at the same time. Party A travels 15km per hour and Party B 13km per hour. They meet 3km away from the midpoint to find the distance between the two places In fact, I have seen a lot on the Internet, but I don't know how to get the answer, for example, how to get the number, why to calculate this step ~ I give you all my wealth, although only a little
• 12. A and B ride from a to B at the same time. A travels 15km per hour, B travels 13km per hour. They meet at the midpoint of 3km. Find the distance between the two places
• 13. Motorcycles and trucks are facing each other. After 1.5 hours, they meet at the midpoint of 9 meters. The speed of motorcycles and trucks is 1.5 times that of trucks, less than 2 meters. Find the distance between the two places
• 14. A and B leave from AB and meet at the midpoint of 30 km. It is known that the speed of a is 1.5 times that of B, and ab is thousands of meters away
• 15. A and B start at the same time from AB and run in opposite directions. The meeting point is 24km away from the midpoint. It is known that the speed of car a is 62.5% of that of car B, and car a travels 75KM per hour
• 16. The speed ratio of car a and car B is 4:7. The two cars leave from a and B at the same time and meet at 15 kilometers away from the midpoint of a and B. how many kilometers are there between a and B The calculation process should be detailed. The name of the company should be = =, which is a bit strict. But the teacher stipulated that everyone should be able to explain the reason Baidu compatriots, we keep our word
• 17. The two cars leave from a and B and meet at 2.5km from the midpoint. It is known that the speed ratio of the two cars is 5:4 and the distance between the two places is () km
• 18. The speed ratio of car a and car B is 3:2. Two hours later, they meet and go on. There are 60 kilometers left between car a and car B. find out the speed of the two cars
• 19. The two trains leave from station a and station B 364km apart at the same time. They meet at 4:00 on the way. The speed of train a is six seventh of that of train B At the same time, the two trains leave from station a and station B 364km apart. After 4:00, they meet on the way. The speed of car a is six seventh of that of car B. the speed of car a is six seventh of that of car B. what are the speeds of car a and station B? Hurry up, hurry up, the slowest is tonight
• 20. There are two kinds of taxis in a certain place. You need to pay 5 yuan for a taxi within 3 kilometers, 2 yuan for each kilometer later, and 8 yuan for B taxi within 3 kilometers There are two kinds of taxis in a certain place. It costs 5 yuan to take a class a taxi within 3 km, 2 yuan to take a class B taxi within 3 km, 8 yuan to take a class B taxi within 3 km, and 3 yuan to take a class B taxi. Xiaoyunguai's class a taxi and Xiaojun's class B taxi cost 17 yuan. How many kilometers do they take? Please give me a list