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Xiaomin and Wang Gang are both stamp collectors. Now the ratio of the number of stamps between Xiaomin and Wang Gang is 3:4. If Wang Gang gives Xiaomin 9 stamps, their number of stamps will be equal. They share stamps______ There are two
They have 126 stamps in total
Xiaogang and Xiaoyong start from two places by bike at the same time. Xiaogang meets Xiaoyong at 8 / 5 of the whole race, and Xiaoyong continues to run at a speed of 10 kilometers per hour
Go ahead and finish the rest in 2.5 hours,
Xiao Gang meets Xiao Yong when he finishes 5 / 8 of the whole journey, which indicates that 1-5 / 8 of the whole journey is 3 / 8
So the speed ratio of Xiaogang and Xiaoyong is 5:3
So Xiaogang's speed is 10 × 5 / 3 = 50 / 3 km
(about 16.7 km)
Xiaogang and Xiaoqiang set out at the same time from A. B. Xiaogang rode a bicycle and Xiaoqiang walked along the same route at a constant speed. Two hours after starting, they met,
See a similar question, do not know the data right?
Xiaoqiang takes 2 hours, while Xiaogang only takes 0.5 hours,
If the speed of Xiaoqiang is XKM / h, the speed of Xiaogang is 4xkm / h,
（4x-x）*2=24,
Then x = 4,
Xiaoqiang's speed is 4km / h, Xiaogang's speed is 16km / h
After meeting, Xiaoqiang has to travel 16 * 2 = 32 km, and it takes 32 / 4 = 8 hours for Xiaoqiang to reach point a
Xiaogang and Xiaoyong ride from two places at the same time. Xiaogang meets Xiaoyong at 5 / 8 o'clock after the whole journey. Xiaoyong continues to advance at the speed of 10 kilometers per hour and takes 2.5 hours to complete the rest of the journey. What's the speed of Xiaogang?
Xiao Gang meets Xiao Yong when he finishes 5 / 8 of the whole journey, which indicates that 1-5 / 8 of the whole journey is 3 / 8
So the speed ratio of Xiaogang and Xiaoyong is 5:3
So Xiaogang's speed is 10 × 5 / 3 = 50 / 3 km
(about 16.7 km)
RELATED INFORMATIONS
- 1. Xiaogang and Xiaoqiang set out from a and B at the same time. Xiaogang rode a bicycle and Xiaoqiang walked along the same route at an average speed. Two hours after starting, they met, Xiaogang travels 24km more than Xiaoqiang when they meet. 0.5h after they meet, Xiaogang arrives at place B. what are their travel speeds? How long does it take Xiaoqiang to arrive at place a after they meet
- 2. Kobayashi and Xiaogang run the 100 meter race. It is known that Kobayashi runs 1 meter in the first second and then runs 0.1 meter more than the previous second. Xiaogang runs at the speed of 1.5 meters per second all the time. Who can win? Come on, help me do it
- 3. Xiao Lin and Xiao Gang quarrel loudly in the self-study class for a small matter At this time, the monitor said: "a you have a bad influence on such a loud quarrel. B you have a bad influence on such a loud quarrel. Aren't you ashamed? C you have a bad influence on such a loud quarrel. D you have a great influence on such a loud quarrel
- 4. Xiao Ming and Zhang Hua Run the 100 meter race. Xiao Ming reaches the finish 10 meters ahead of time. If Xiao Ming is 10 meters behind the start, who will reach the finish first (Xiao Ming and Zhang Hua have run the 100 meter race for many times, and each time Xiao Ming reaches the finish line 10 meters ahead of time. If Xiao Ming is 10 meters behind the starting point and Zhang Hua is still starting at the starting point, who will reach the finish line first?) (there must be a process of scientific problem solving)
- 5. The perimeter of the track is 400m. Xiaoming runs 5 / 3 times faster than his grandfather. They start from the same starting point along the same direction of the track at the same time, Five minutes later, Xiao Ming caught up with his grandfather for the first time and asked about their running speed
- 6. Xiaoming's, Xiaogang's and school are on the same line Xiao Ming's home, Xiao Gang's home and school are on the same line. After school, Xiao Ming and Xiao Gang start to walk home from school at the same time. It is known that each clock of Xiao Ming runs 80m, which is twice as much as Xiao Gang's, but it is less than 50m. After 10 minutes, two people get home at the same time. How many meters is the distance between Xiao Ming and Xiao Gang
- 7. Xiaoming and Xiaogang set out at the same place at the same time and run forward together along the 400 meter circular track. It takes three minutes for Xiaoming to run a lap and four minutes for Xiaogang to run a lap. How many minutes later will they meet at the same place?
- 8. Xiao Ming and Xiao Hua practice running on the 400 meter track. They start at the same time and run in the same direction. After 200 seconds, Xiao Ming catches up with Xiao Hua. They run in the opposite direction and meet each other after 40 seconds. What's their speed per second?
- 9. Xiaoming and Xiaohua are running on the circular track. It takes 8 minutes for Xiaoming to run a lap and 10 minutes for Xiaohua to run a lap. Now it takes at least a few minutes for them to meet for the first time after they start from the starting point at the same time?
- 10. Xiao Ming and Xiao Hua practice running on a 400 meter circular road. They start from the same point and walk in the same direction at the same time. Xiao Ming runs 3.5 meters per second, and Xiao Hua runs 5.5 meters per second, After how many seconds. Two people meet for the second time?
- 11. Ask for advice to write a program in VB. Find the least common multiple of two natural numbers m and N. is this right? Dim a%,b%,t%,i% A = InputBox ("the first number"): B = InputBox ("the second number") If a
- 12. Using VB to write a solution to "digital triangle" program: the natural number 1 to 6 were filled in the small circle in the graph, so that the triangle on each side of the three numbers
- 13. Find out all natural numbers with 6 different divisors and no more than 100
- 14. Sasha practices oral arithmetic. She sums from 1 according to the order of natural numbers. When he calculates a certain number, the sum is 1000, but she repeatedly calculates one of the numbers Using arithmetic sequence to calculate formula
- 15. Three continuous natural numbers whose product is 336
- 16. If the product of three continuous natural numbers is 336, what is the sum of them,
- 17. Xiaoming and Xiaogang start to race to climb stairs from the first floor. When Xiaoming climbs to the third floor, Xiaogang goes to the fourth floor. According to this calculation, when Xiaoming reaches the ninth floor, what floor does Xiaogang go to
- 18. Xiao Ming designed a calculation program with a computer. The input and output data are shown in the table below Input: 1 2 3 4 5 Output: 1 / 2 2 / 5 3 / 10 4 / 17 5 / 26 When the input data is 10, how much data should be output?
- 19. According to the program operation in the figure: when the input data is 4, the output data is 4______ ．
- 20. We help out 100 oral calculation, 50 written calculation, 30 off formula calculation You don't have to answer all the questions. The more you give, the better. The more you add up, the more you get