【1】 The tire diameter of a car is 8dm, and it runs 45.216km at 1 hour. How many turns does the car wheel turn per minute? 【2】 Lili read a book, read 24 pages on the first day, read 25% of the whole book on the second day, and read 40% of the whole book in two days. How many pages are there in this book? 【3】 There is a round iron ring with a diameter of 20cm. Now we need to fold it into a rectangle, so that the ratio of length to width is 3:1. What is the length and width of the rectangle? 【4】 The ratio of a, B and C is 1:2:3. The average number of a, B and C is 120. What are the numbers of a, B and C?

【1】 The tire diameter of a car is 8dm, and it runs 45.216km at 1 hour. How many turns does the car wheel turn per minute? 【2】 Lili read a book, read 24 pages on the first day, read 25% of the whole book on the second day, and read 40% of the whole book in two days. How many pages are there in this book? 【3】 There is a round iron ring with a diameter of 20cm. Now we need to fold it into a rectangle, so that the ratio of length to width is 3:1. What is the length and width of the rectangle? 【4】 The ratio of a, B and C is 1:2:3. The average number of a, B and C is 120. What are the numbers of a, B and C?

【1.】
14% 8 = 25. 12 (DM)
12% 60 = 1507.2 (DM)
45.216km＝452160dm
452160 △ 1507.2 = 300 (circle)
【2.】
24÷（40%-25%）
= 160 (pages)
【3.】
20×3.14＝62.8（cm）
62.8÷（1+3）
＝15.7
15.7×3＝47.1（cm)
15.7×1＝15.7（cm）
【4.】
120×3＝360
360÷（1+2+3）＝60
60×1＝60
60×2＝120
60 × 3 = 180 ha ha! Work hard! Work hard! Create a historical miracle! Choose me!