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Uncle Zhang bought five small bottles of soda and a large bottle of orange juice in the supermarket, which cost 19.2 yuan in total?
The price of a small bottle of soda = the price of a large bottle of orange juice × 1 / 3
The price of a large bottle of orange juice = the price of a small bottle of soda water × 3
The price of a small bottle of soda is 19.2 ÷ (5 + 3) = 2.4 yuan
The price of a large bottle of orange juice = 2.4 × 3 = 7.2 yuan
It's interesting to guess an arithmetic problem. Let's see who can guess correctly. One yuan can buy a bottle of soda, two bottles can exchange for one, and 20 yuan can drink how many bottles of soda
20 yuan. 20 bottles
20 empty bottles. 10 bottles
10 empty bottles. 5 bottles
5 + 1.3 bottles
Returned the borrowed empty bottle
2 empty bottles. 1 bottle
20 + 10 + 5 + 3 + 1 = 39 bottles
What are the uses of empty mineral water bottles?
Starting from environmental protection, turning waste into treasure!
It's a great brainstorming
The more creative the better
Thank you very much for your comments
1 selling money! (economic benefits) 2 recycling (environmental benefits) 3 can be used as convex lens to see the virtual world - for 5-year-old ha ha 4 sedentary can be padded under the buttocks when air cushion 5 can be used as funnel to open the bottom of bottle 6 can be used as filter to purify water
There are 27 people who want to buy water. Every three bottles of mineral water can be replaced by one. How many bottles of water do you want to buy just enough for 27 people
Buy x bottles of water
Then x + X / 3 + X / 9 = 27, 13X = 243, x = 18.6, and the integer is 19
Buy 19 bottles of water, change 19 / 3 = 6 bottles, more than 1 bottle of 6 bottles can be changed for another 2 bottles, and more than 1 bottle can be changed for another 2 bottles
A total of 19 + 6 + 2 + 1 = 28 bottles can be exchanged
RELATED INFORMATIONS
- 1. Pet1 under mineral water bottle There's a pet under the bottle of mineral water. There's a 1 in it Some bottles have 5 in them
- 2. The weight of an empty bottle is 150g, the weight of water and bottle is 400g when it is filled with water, and the weight of water and bottle is 350g when it is filled with another liquid When an empty bottle weighs 150g, the weight of water and bottle is 400g, and when it is filled with another liquid, the weight of water and bottle is 350g, what is the bottle volume and liquid density?
- 3. An empty bottle with three glasses of water weighs 500g, and an empty bottle with five glasses of water weighs 800g
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- 12. Give you 30 yuan, let you buy 1 yuan a bottle of mineral water (every 2 empty bottles can change 1 bottle of mineral water) ask you how many bottles of mineral water you can drink at most
- 13. There were 300 students in Huimin primary school. The number of girls increased by 5% and that of boys by 4% this semester. The total number of students increased by 13. How many girls were there?
- 14. The number of boys in class 6 (1) is 25% more than that of girls, just five more. How many students are there in this class?
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- 17. Xiaoxiao went to the supermarket to buy some drinks. She just paid 60 yuan, 4 yuan for coke and 3 yuan for mineral water
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