2006 澳洲 AMC D-Intermediate 真题 答案 详解

2006 年 D-Intermediate 真题,中英双语,答案,详解

英文真题

Intermediate Division
Questions 1 to 10, 3 marks each

1. (92.2 - 85.3) equals
   (A) 6.1 (B) 6.9 (C) 7.1 (D) 7.5 (E) 7.9

2. In the diagram, the value of (x) is
   (A) 35 (B) 40 (C) 45 (D) 50 (E) 55

3. If (a = 2b - 5), then (b) equals
   (A) (\frac{a}{2}) (B) (\frac{a}{2} + 5) (C) (\frac{a-5}{2}) (D) (\frac{a+5}{2}) (E) (2a + 5)

4. Which of the spinners below would give a one-in-four chance of the arrow landing in the shaded region?
   (A) (B) (C) (D) (E)

5. The area, in square centimetres, of one face of a cube whose volume is (64 \text{ cm}^3) is
   (A) 8 (B) 16 (C) 24 (D) 32 (E) 64

6. The average of five numbers is 4. Four of them are 1, 2, 3, and 4. What is the other?
   (A) 6 (B) 7 (C) 8 (D) 9 (E) 10