2024 澳洲 AMC C-Junior 真题 答案 详解

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英文真题

3 Junior 24 Junior Division Questions 1 to 10, 3 marks each 1. Owen set the temperature dial on his oven as shown. What temperature is it set to? (A) 175°C (B) 185°C (C) 195°C (D) 205°C (E) 215°C 2. If the day before yesterday was Monday, then the day after tomorrow will be (A) Monday (B) Tuesday (C) Wednesday (D) Thursday (E) Friday 3. The metal in an Australian 20 cent coin is one-quarter nickel, and the rest is copper. What fraction is copper? (A) ( \frac{3}{4} ) (B) ( \frac{1}{2} ) (C) ( \frac{1}{4} ) (D) ( \frac{4}{4} ) (E) 0 4. What is the value of x in the diagram? (A) 40 (B) 50 (C) 60 (D) 70 (E) 80 5. The value of ( \frac{2024}{2+0+2+4} ) is (A) 1 (B) 126.5 (C) 253 (D) 506 (E) 1012 6. What is the difference between ( 3 \times (4 + 2) ) and ( (3 \times 4) + 2 )? (A) 0 (B) 2 (C) 4 (D) 6 (E) 8 7. The area of the triangle shown is 36 m². What is the length h? (A) 2 m (B) 4 m (C) 4.5 m (D) 8 m (E) 16 m AMC2024 Final — cleaned copy 15/8/2024

中文真题

2024 Australian AMC Mathematics Ability Test - Primary Paper
Primary Paper (7th Grade)
Questions 1-10, 3 points each

Question 1: Xiaoyi sets the oven temperature control knob to the position shown in the figure. What temperature does he set?
(A) 175°C (B) 185°C (C) 195°C (D) 205°C (E) 215°C

Question 2: If yesterday was Monday, what day will be tomorrow?
(A) Monday (B) Tuesday (C) Wednesday (D) Thursday (E) Friday

Question 3: A 20-cent coin from Australia contains one-quarter silver, with the rest being copper. What fraction represents the proportion of copper?
(A) ( \frac{3}{4} ) (B) ( \frac{1}{2} ) (C) ( \frac{1}{4} ) (D) ( \frac{4}{4} ) (E) 0

Question 4: What is the value of x in the right triangle shown?
(A) 40 (B) 50 (C) 60 (D) 70 (E) 80

Question 5: What is the value of ( \frac{2024}{2+0+2+4} )?
(A) 1 (B) 126.5 (C) 253 (D) 506 (E) 1012

Question 6: What is the difference between ( 3 \times (4 + 2) ) and ( (3 \times 4) + 2 )?
(A) 0 (B) 2 (C) 4 (D) 6 (E) 8