The price of a commodity is a yuan, which is reduced by 10%, and then it is reduced by 10%. The sales volume increases sharply. The store decides to increase the price by 20%. After the increase, the price of this commodity is () A. A yuan B. 1.08a yuan C. 0.972a yuan D. 0.96a yuan

The price after the first price reduction is a × (1-10%) = 0.9A yuan, the price after the second price reduction is 0.9A × (1-10%) = 0.81a yuan, the price after 20% price increase is 0.81a × (1 + 20%) = 0.972a yuan, so C

RELATED INFORMATIONS

1. This TV is 1200 yuan cheaper than the original price. Is it 20% off the original price?
2. There is a TV set with a 10% discount, which is 1200 yuan cheaper than the original price. How much is the original price of the TV set
3. LCD TV: 10% off the current price. This TV is 1200 yuan cheaper than the original price. How much is the original price of the TV
4. The current price of a TV is 20% off, 1200 yuan cheaper than the original price
5. During the festival, all goods in a shopping mall are sold at a 15% discount. The original price of a suit is 420 yuan, but how much is the current price? Xiao Li actually paid 289 yuan for a bicycle. How much was the original price of the bicycle?
6. In a shopping mall, a mobile phone with the original price of 2500 yuan is sold at a 25% discount. How much cheaper is the selling price of the mobile phone?
7. The original price of a brand MP5 is 360 yuan, but now it's 15% off. It's ()%, and the current price is 306 yuan
8. A shopping mall wants to buy 50 pieces of a and B commodities. The price of a commodity is 35 yuan per piece, and the profit rate is 20%. The price of B commodity is 20 yuan per piece, and the profit rate is 15%. The total profit is 278 yuan. How many pieces of a and B commodities do you buy?
9. 1. Let "● and" ■ "denote different objects respectively. As shown in the figure, the first two balances shall be balanced. If the third balance is to be balanced, then the number of ■ to be placed at"? "Is () A.5 B.4 C.3 D.2 2. If (2y-3x) / 5 = 1, then 9x-6y= 3. In y = KX + B, when x = - 1, y = 5, then k =, B= 4. Given that x = 3 / 5, y = 6 / 5 is the solution of the system of equations x + 2Y = 3, 3y-x = 3, then the intersection coordinates of the linear functions y = - 1 / 2x + 3 / 2 and y = (x / 3) + 1 are 5. The solutions of the system of equations 3x-y = 26x-2y = 4 are - system 6. Given that the sum of X and Y in the solution of the system of equations 2x + y = 3 ax + 2Y = 4-A is 1, then a= The first one is multiple-choice questions. All of the following questions are filled in the blanks. Just get the right answer, Question 1: two on the left, one on the right, and one on the left One on the left, one on the right and one on the right of the second The third one is on the left, one is on the right? The third question: in y = KX + B, when x = - 1, y = 0; when x = 1, y = 5. Then k =, B=
10. If the purchase price of a commodity is doubled and the price is marked, how much discount can we get if we want to get a 20% profit margin For example: how much discount can I get if I double the price of a commodity to get a 20% profit margin? Yes, there is a reward!
11. When a shopping mall sells the same commodity at different prices, the price is 150 yuan. The profit of the commodity sold by the shopping mall is 20% - 50% of the purchase price
12. A shopping mall will increase the original price by 20% and price it again. Then it will reduce the price by 20% according to the new regulations. The selling price is 2880 yuan. What's the original price? From the date of sale, the price of a certain fruit is reduced by 20% every day compared with the previous day. Xiaoming bought 3kg the next day and 3kg the third day It costs 42 yuan twice. What's the price of this fruit on the same day? It's fast and urgent,
13. The price of a commodity is a yuan, which is reduced by 10%, and then it is reduced by 10%. The sales volume increases sharply. The store decides to increase the price by 20%. After the increase, the price of this commodity is () A. A yuan B. 1.08a yuan C. 0.972a yuan D. 0.96a yuan
14. A shopping mall can make a profit of 2 yuan for a certain kind of stationery. In order to support the poor mountainous areas, it is now sold to a mountainous school at 70% of the original price. As a result, each stationery is still profitable
15. Shopping malls offer discounts, including a 70% discount for clothing and a 20% discount for stationery. How much does Xiao Ming actually pay for a 200 yuan dress and a 120 yuan schoolbag?
16. A stationery box was originally priced at 24 yuan. How much is the current price? A doll is 14 yuan after discount
17. The original price of a TV set is 2400 yuan, and the shopping malls carry out promotional activities. The current price is seven eighths of the original price, which is () yuan cheaper
18. A kind of woolen sweater is on sale in the shopping mall. The current price is 120 yuan, 25% cheaper than the original price. How much is the current price cheaper than the original price
19. The current price of TV is 4200 yuan, which is 12.5% cheaper than the original price. How much is it cheaper than the original price
20. The price of a commodity is 80 yuan, which is 20 yuan lower than that in the past______ %．