2008 澳洲 AMC D-Intermediate 真题 答案 详解

中英双语真题

Intermediate Exam (9-10th Grade)

1-10 questions, 3 points each

1. The expression (802 - 208) equals: (A) 606 (B) 604 (C) 504 (D) 694 (E) 594

2. Given that (1.08 \times 1.8 = 1.944), what is the value of (108 \times 18): (A) 194.4 (B) 1944 (C) 19440 (D) 194400 (E) 19400

3. In the diagram on the right, extending the sides of a triangle forms three angles as shown. What is the value of (x): (A) 100 (B) 110 (C) 120 (D) 130 (E) 140

4. Simplify the expression (\frac{200 \times 8}{200 \div 8}): (A) 1 (B) 8 (C) 16 (D) 64 (E) 200

5. Using the digits 5, 6, 7, 8, 9, form an even five-digit number. What is the largest possible digit in the tens place? (A) 5 (B) 6 (C) 7 (D) 8 (E) 9

6. Four consecutive odd numbers sum up to 48. What is the largest of these four numbers? (A) 13 (B) 15 (C) 17 (D) 19 (E) 21

7. A rectangle has an area of (72 \text{ cm}^2), and its length is twice its width. What is its perimeter? (A) 34 (B) 36 (C) 42 (D) 48 (E) 54

8. Which option represents "y percent of x": (A) (\frac{y}{x}) (B) (\frac{x}{100}) (C) (\frac{x}{y}) (D) (\frac{100y}{x}) (E) (\frac{100x}{y})

英文真题

Intermediate Division
Questions 1 to 10, 3 marks each

1. The value of $802 - 208$ is
   (A) 606
   (B) 604
   (C) 504
   (D) 694
   (E) 594

2. Given that $1.08 \times 1.8 = 1.944$, the value of $108 \times 18$ is
   (A) 194.4
   (B) 1944
   (C) 19.44
   (D) 19440
   (E) 19400

3. In the diagram, the sides of the triangles are extended and three angles are as shown. The value of $x$ is
   (A) 100
   (B) 110
   (C) 120
   (D) 130
   (E) 140

4. The value of $\frac{200 \times 8}{200 \div 8}$ is
   (A) 1
   (B) 8
   (C) 16
   (D) 64
   (E) 200

5. The digits 5, 6, 7, 8 and 9 can be arranged to form even five-digit numbers. The tens digit in the largest of these numbers is
   (A) 5
   (B) 6
   (C) 7
   (D) 8
   (E) 9

6. Four consecutive odd numbers add up to 48. What is the largest of these numbers?
   (A) 13
   (B) 15
   (C) 17
   (D) 19
   (E) 21