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Xiao Li has 12 more color pictures than Xiao Lan, which is just three tenths of Xiao Lan's number. How many color pictures does Xiao Lan have
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- 1. Xiaolan has 12 fewer pictures than Xiaoli, which is just 30% of Xiaoli's
- 2. Xiaoli and Xiaolan play rope skipping. Xiaoli jumps four times as many as Xiaolan. Xiaolan jumps 39 times as many as Xiaoli. How many does Xiaolan jump?
- 3. Xiaoli has 12 more stamps than Xiaolan, and Xiaolan has 16 fewer stamps than Xiaoli. How many stamps does Xiaolan have?
- 4. Xiaoli has 14 more stamps than Xiaolan, which is exactly two-thirds of Xiaolan's. how many stamps does Xiaoli have
- 5. Xiao Li and Xiao Ming compete in typing. Xiao Li's typing speed per minute is 1.2 times that of Xiao Ming. She also types 300 words. Xiao Li uses less than one minute. How many words do Xiao Li and Xiao Ming type each minute? Xiao Li and her father practice walking race. Dad walks 50 meters more than Xiao Li every minute. When Dad walks 1800 meters, Xiao Li just walks 1200 meters. How many meters does Xiao Li walk every minute?
- 6. Dad and mom take Xiao Ming to the park and buy a ticket of 17.5 yuan. It is known that an adult ticket is equal to three children's tickets. How much is an adult ticket?
- 7. Mother's age is four times that of Xiaoli now, and ten times that of Xiaoli six years ago. Please figure out the age difference between mother and Xiaoli?
- 8. Since April 1, Xiaoming's mother has a day off every four days, and his father has a day off every six days. When his parents have a full day off, the whole family will go to the park together How many days before Xiao Ming's family can play together? The answer is 4, 12 or 5, 5? Why
- 9. Dad takes a day off every 6 days and mom takes a day off every 7 days. If Mom and Dad take a day off at the same time on March 4, what month and day do they take a day off at the same time?
- 10. Lulu's father and mother work in different units. October 1 is a day for father and mother to rest together. Father works for three days and has one day off, Mom works for 5 days and takes a day off. How many days do they have to rest together in this month
- 11. Zhuang Zhuang and some children went to the fast food restaurant for dinner. They bought 10 hamburgers and chips, which cost 80 yuan. How many hamburgers and chips did they buy French fries 5 yuan hamburger 12.5 yuan
- 12. Xiaojun's walking distance is 14 more than Xiaohong's, but Xiaohong's walking time is 110 more than Xiaojun's______ ．
- 13. Xiaoming and Xiaoqiang run at 6m / s and 8m / s respectively. They practice running east and south from the same point at the same time. How many seconds does it take from the start? They can be 160m apart
- 14. Xiaoming walks from place a to place B, and Xiaoqiang walks from place B to place a at the same time. When they reach the destination, both sides immediately return. During the walking process, their respective speeds remain unchanged. The first time they meet is 40 kilometers away from place a, and the second time they meet is 15 kilometers away from place B. then the distance between a and B is______ Kilometers
- 15. Xiaoming and Xiaoqiang walk to school. Xiaoming walks one fifth more than Xiaoqiang. Xiaoqiang spends one eleventh less time than Xiaoming. Find the speed ratio between Xiaoming and Xiaoqiang Xiaoming and Xiaoqiang walk to school. Xiaoming walks one fifth more than Xiaoqiang. Xiaoqiang spends one eleventh less time than Xiaoming. What's the speed ratio between Xiaoming and Xiaoqiang
- 16. Xiaoli, Xiaoqiang and Xiaohong, grade nine students of a certain school, went to the supermarket to participate in the social practice activities, in which they took part in the sales of certain fruits It is known that the purchase price of the fruit is 8 yuan / kg. Here is their conversation after the event Xiao Li: if you sell it at 10 yuan / kg, you can sell 100 kg per day Xiaoqiang: if you sell it at 13 yuan / kg, you can make a profit of 400 yuan per day Xiao Hong: through investigation and verification, I found that there is a functional relationship between the daily sales volume of Y kg and the sales unit price of X Yuan Xiaoqiang: I find that the daily sales volume is between 70kg and 100kg (1) Find the functional relationship between Y (kg) and X (yuan) (x > 0); (2) Suppose the daily profit of the supermarket is w yuan. When the unit price of the fruit is w yuan, what is the maximum profit? What is the maximum profit? PS: Digital conditions are different
- 17. Xiaohong walks 60 meters every minute from home to school. The school is 5400 meters away from Xiaohong's home. Xiaohong leaves home for school at 6:20. After walking for 10 minutes, she forgets to bring her red scarf. So she runs home at 80 meters per minute and goes to school at the same speed. Can Xiaohong get to school at 8:00?
- 18. Xiaojun's walking distance is 14 more than Xiaohong's, but Xiaohong's walking time is 110 more than Xiaojun's______ ．
- 19. Xiaohong drove 1600 kilometers in six minutes and Xiaoli 1600 kilometers in eight minutes. What are their respective speeds?
- 20. The distance between Xiao Li and Xiao Hong is 910 meters. They start from home and arrive at school at the same time in 7 minutes. Xiao Li walks 60 meters per minute. How much does Xiao Hong walk per minute