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3 practical questions. The questions are in the supplementary column. They should be accurate, 1. Xiao Ming: I bought a morning ticket with a 15% discount Xiao Hua: I bought a ticket for the evening. The ticket price is 50% off The air ticket from city a to city B is 1280 yuan for the whole family. How much is cheaper in the evening than in the morning? 2. The original price of a digital camera is 2500 yuan, but now the price is reduced by 500 yuan. How much discount is it? 3. A certain brand of detergent is 25 yuan per bottle. Aunt Wang is going to buy 12 bottles of this brand of detergent for her company. Which supermarket is more cost-effective? Supermarket a: 25 yuan per bottle, five for one free Supermarket B: 25 yuan per bottle, 15% off
1, cheap 1280 * (85% - 50%) = 448 yuan
2,(2500-500)/2500*100%=80%
20% off
3. Go to supermarket a and buy 10 bottles, plus 2 bottles, that's 12 bottles
Supermarket a: 25 yuan per bottle, five for one free
25 * 10 = 250 yuan
Supermarket B: 25 yuan per bottle, 15% off
25 * 12 * 85% = 255 yuan
It's 5 yuan cheaper to go to a supermarket
Xiaoqiao borrows a story book for a week. She reads 25 pages a day on average in the first two days and 5 more pages a day in the future. Can she finish it in the loan period?
Xiaoqiao reads 170 pages of the story every day. Can she borrow it for more than one week?
25 + 25 + 30 + 30 + 30 + 30 200 A: Yes
1 2 3 4 5 6 7
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