Answer: 35/5/7 = 49 pages.
Q: China is a vast country, with a distance of 5,200 kilometers between east and west and 52 out of 55 between north and south. What is the distance between north and south? Answer: 22 ÷ 55 out of 5200 = 5500 kilometers.
03. Q: Of the 500 seedlings planted, 490 were successfully planted. What is the survival rate of these seedlings?
Answer: 490÷500× 100% = 98%.
04.q:(): 16 = 10 = 0. 125 =()%
Answer: 2 80 12.5
Q: Households in Xiao Fei used to use about 65,438+00 tons of water every month, but after replacing the water-saving faucet, they used to use about 9 tons of water every month. What percentage of water consumption is saved every month?
Answer: (10-9) ÷10 =10%
06. Q: There were 2,800 students in a primary school last year, and Jinlian decreased by 0.5% compared with last year. How many students are there this year?
Answer: 2800-2800×0.05% = 2786 people.
07. Q: Aunt Zhang typed 1600, which is exactly 40% of the full text. How many words are there in the full text? (2) how many words haven't been typed?
Answer: ① 1600 ÷ 40% = 4000 words ②4000- 1600=2400 words.
08. Q: There are 180 students in a primary school, and only 5% of the students did not participate in accident insurance. How many students are insured?
Answer: 480× (1-5%) = 456 people.
09. Q: The chicken farm hatched 2,400 eggs, but 5% did not hatch. How many chicks have they hatched?
Answer: 2400-2400× 5% = 2280.
10. Q: Dad bought a bike for Xiaoming. Original price 180 yuan. How much should dad pay after a 15% discount?
Answer: 180× 85% = 153 yuan.