Ming and Qiang start from a and B at the same time, and meet at 1200 meters from the end. It is known that Xiaoqiang's speed is three eighths of Xiaoming's speed, so we can find the distance
It should be: the midpoint
1200 × 2 = 2400m
1-3/8=5/8
2400 △ 5 / 8 = 3840m
3840 × (1 + 3 / 8) = 5280m
A and B go from a to B at the same time. A rides a bicycle and B rides a motorcycle. B is 24km faster than a per hour. A spends 3 / 4 more time than B. what's the speed of a
A uses 3 / 4 more time than B, that is, a uses 1 + 3 / 4 = 7 / 4 of B. his speed is only 1 / 7 / 4 = 4 / 7 of B, 1-4 / 7 = 3 / 7 less than B, B's speed is 24 / 3 / 7 = 56 km, a's speed is 56-24 = 32 km per hour
RELATED INFORMATIONS
- 1. a. B is 72 kilometers away from each other. A starts from a to B by bicycle at a speed of 5 meters per second. When a starts for 2 hours, B starts from a by motorcycle to catch up with a If the speed of the motorcycle is 48 km / h, then B will catch up with a at the distance from B,
- 2. A. There is a highway between B and B. A and B start from ab at the same time. The speed of a is 50 km A. There is a highway between B and A. A and B start from ab at the same time. The speed of a is 50 km / h. After one hour, the two vehicles meet for the first time. Then the two vehicles continue to drive and return to B and a. the distance between the second meeting point and the first meeting point is 20 km (2) The speed of car B What I do is 110 kilometers. If not, please explain the reason Oh, your answers are different. I don't know which one is right
- 3. The distance between a and B stations is 216KM. At 16 o'clock on a certain day, a and B vehicles start from a and B stations and run in opposite directions It is known that the speed of car a is 90m / h and that of car B is 72km / h. When did the two cars meet
- 4. There are two stations a and B 108 km apart on a main highway. At 16 o'clock on a certain day, a and B start from a and B stations at the same time and run in opposite directions. It is known that the speed of car a is 45 km / h and that of car B is 36 km / h, then the time when the two cars meet is______ .
- 5. In △ ABC, ab = 5, BC = 3, when ∠ ABC = what, the area of △ ABC is the largest
- 6. In △ ABC, BC = 2 √ 5, AC = 2, and the area of △ ABC is 4, what is the length of AB
- 7. In △ ABC, ab = AC, BC = 6, angle BAC = 120 °, AB / BC can be obtained
- 8. The first time they met 16 meters away from B and the second time they met 18 meters away from a Solving linear equation with one variable
- 9. The two cars start from AB and go towards each other. They meet 64 kilometers away from B. they continue to go along the original road and return to 48 kilometers away from A. then they meet again. The distance between the two meeting points
- 10. The first time they met is 180km away from A. after meeting, they continue to move forward. They arrive at Ba and return along the same road. The second time they are 260km away from A. how many kilometers are there between AB and a?
- 11. Party A and Party B set out from a and B at the same time. Party A rode a bicycle and Party B rode a motorcycle. They were on the same route at the same time. They met three hours after departure. It is known that Party B walked 90 kilometers more than party a when they met. After meeting for one hour, Party B arrived at place A. what are the speeds of Party A and Party B? If the velocity of a is x km / h, the equation is If the velocity of B is x km / h, the equation is
- 12. A and B ride from East and west at the same time. They meet in eight hours. If a travels less than one kilometer per hour, B travels more than three kilometers per hour, and they meet in seven hours The distance between East and West?
- 13. In AB, the ratio of time for a and B to complete the whole journey by bicycle is 4:5. If a and B travel from ab at the same time, 40 minutes later, they meet and continue to move forward. In this way, how many minutes later will b arrive at a than a arrive at B?
- 14. A and B two people ride bicycles from AB to each other at the same time. It takes 6 hours for a to complete the whole journey. When a and B meet, the distance is 3:2, and a is better than B when they meet How many kilometers per hour for B
- 15. A and B two cars simultaneously from AB two opposite, 6 hours meet, after meeting a car continue to drive 4 hours to arrive at B, B line to complete the whole how many hours?
- 16. AB is 100km away, a is 20km / h in place a, B is 30km / h in place B, a starts one hour later, B starts two people contrary to each other, B starts several hours, two people are 200km away
- 17. A. The distance between two places B is 20km. A advances from a to B, while B advances from B to A. two hours later, they meet on the way. After meeting, a returns to a, and B still advances to A. when a returns to a, B is 2km away from A. find out the speed of a and B
- 18. A and B are 10 kilometers apart. Now they are going to each other at the speed of 3 km / h and 2 km / h respectively. At the same time, a dog runs from a to B at the speed of 10 km / h. After meeting B, it immediately turns around and runs to a, and then runs to B after meeting a Until Party A and Party B meet, ask for the distance that the dog takes
- 19. A. The distance between B and a is 20 kilometers. A and B walk from a to B. A walks 4 kilometers per hour. B rides a bicycle at 2.5 times the speed of A. a walks for an hour first, and B sets out. When B catches up with a, he immediately returns to a, then returns to a, and when B catches up with a, he immediately returns to a, and then returns to a, How many kilometers did B walk?
- 20. The speed of a's bicycle is AKM per hour, which is twice as fast as that of a's, but less than 3 per hour. When B meets a half an hour later, how many kilometers are there between a and B