A product is priced at 20% profit, and then sold at a 20% discount. As a result, each product loses 36 yuan, and the cost price is calculated Come on!

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• 1. A commodity is priced at 15% of the profit, and then it is sold at a 10% discount. As a result, each commodity still earns 70 yuan. How far is the cost price of this commodity?
• 2. A commodity is increased by 20% according to the cost price, and then sold at a 10% discount. The selling price is 270 yuan. How much is the cost price of this commodity? It must be solved by a linear equation of one variable,
• 3. A commodity is priced at 20% profit, and then sold at 20% discount, resulting in a loss of 64 yuan. How much is the cost of this commodity?
• 4. A commodity is priced at 20% profit and then sold at 20% discount. As a result, it loses 40 yuan. How much is the cost of this commodity?
• 5. A commodity is priced at 20% profit, and then sold at 20% discount, resulting in a loss of 64 yuan. How much is the cost of this commodity?
• 6. A certain commodity is priced at 20% of the profit, and then sold at 80% of the price. As a result, each commodity loses 12 yuan. What is the cost of this commodity?
• 7. A commodity is priced at 20% of the profit, and then sold at 80% of the price, resulting in a loss of 40 yuan. How much is the cost of this commodity?
• 8. It is priced at 20% of the profit and sold at 80% of the price. If it loses 64 yuan, how about the cost price?
• 9. A commodity is priced at 20% profit, and then sold at 20% discount, resulting in a loss of 64 yuan. How much is the cost of this commodity?
• 10. The total cost of the two commodities is 200 yuan, and the commodity a is priced at 30% of the profit
• 11. A commodity is priced at a 25% profit, and then sold at a 10% discount. As a result, each commodity makes a profit of 20 yuan. How much is the cost of this commodity?
• 12. A commodity is priced at a 25% profit, and then sold at a 10% discount. As a result, each commodity makes a profit of 20 yuan. How much is the cost of this commodity?
• 13. The price of a commodity is increased by 20% according to the cost price, and then it is sold at a 10% discount. The price is 270 yuan. What is the cost price of this commodity______ Yuan
• 14. A commodity is marked at a price of 20% higher than its cost price, and then sold at a 10% discount. The profit of each commodity sold is 20 yuan. What is the cost price of this commodity?
• 15. If the price of a commodity is increased by 20% according to the cost price, if the commodity is sold at 10% discount and the selling price is 270 yuan, how much is the cost of this commodity? (calculated by equation) How many hectares is a rectangular field 280m long and 250m wide? If 960kg cotton is produced per hectare, how many kg cotton can be produced? (calculated by equation)
• 16. A commodity is priced at 50% profit and then sold at a 10% discount. As a result, each commodity makes a profit of 20 yuan. What is the cost price of this commodity? West West
• 17. Give examples to illustrate the meaning of the following algebraic formula: 1) 3a-b: (2) π a ^ 2: (3) x ^ 2-y ^ 2: (3) x + y + Z / 3:
• 18. 3A = half B, a: B = (): ()
• 19. What does 3A + B mean Let's talk about it with our own reality
• 20. The beam is marked KL-6 (3a). Does 3A represent 3 spans or 4 spans?