2021 袋鼠数学 E-Junior 真题 答案 详解
mathkangaroo mathkangaroo E-Junior
2021-04-07序号 | 文件列表 | 说明 | ||
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1 | 2021-E-Junior-paper-eng.pdf | 8 页 | 941.53KB | 英文真题 |
2 | 2021-E-Junior-paper-eng-zh.pdf | 9 页 | 2.33MB | 中英双语真题 |
3 | 2021-E-Junior-key.pdf | 1 页 | 275.41KB | 真题答案 |
英文真题
31st INTERNATIONAL KANGAROO MATHEMATICS CONTEST 2021
KOF - Problems Junior (Class 9 & 10)
SECTION ONE - (3 point problems)
Time Allowed: 180 minutes
-
Each year, the third Thursday in March is named Kangaroo Day. The dates of Kangaroo Day for the next five years are shown below, with one error. Which date is wrong?
(A) 2022 17 March
(B) 2023 16 March
(C) 2024 14 March
(D) 2025 20 March -
A park is shaped like an equilateral triangle. A cat walks along one of the three indicated paths (darker lines) from the upper corner to the lower right corner. The lengths of the paths are (P), (Q) and (R). As shown, which of the following statements about the lengths of the paths is true?
(A) (P < Q < R)
(B) (P < R < Q)
(C) (Q < P < R)
(D) (P < R < Q) -
Jenny looks at the weather app that shows the predicted weather and maximum temperatures for the next few days. Which of the following represents the corresponding graph of maximum temperatures?
(A)
(B)
(C)
(D)
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中英双语真题
Kangaroo Math Competition 2021 - Junior
3 points
1. Each year, the third Thursday in March is named Kangaroo Day. The dates of Kangaroo Day for the next few years are shown below, with one error. Which date is wrong?
每年三月份的第三个星期四是“袋鼠日”。接下来几年的“袋鼠日”的日期如下所示,其中有一个日期是错误的。请问哪一个日期是错误的?
(A) 2022 17 March 2022年3月17日
(B) 2023 16 March 2023年3月16日
(C) 2024 14 March 2024年3月14日
(D) 2025 20 March 2025年3月20日
(E) 2026 19 March 2026年3月19日
2. A park is shaped like an equilateral triangle. A cat wants to walk along one of the three indicated paths (thicker lines) from the upper corner to the lower right corner. The lengths of the paths are P, Q and R, as shown. Which of the following statements about the lengths of the paths is true?
某公园的形状如同一个等边三角形。一只小猫想要沿着三条路线(加粗的线)中的其中一条,从顶端走到右下角。路线的长度分别为P、Q、R(如图所示)。以下关于路线长度的表述中,哪一项是正确的?
(A) (P < Q < R)
(B) (P < R < Q)
(C) (P < Q = R)
(D) (P = R < Q)
(E) (P = Q = R)
3. Jenny looks at her weather app that shows the predicted weather and maximum temperatures for the next five days. Which of the following represents the corresponding graph of maximum temperatures?
Jenny 的天气应用软件上显示了未来 5 天的天气状况和每日最高温度。以下哪个选项可以表示最高温度的变化图像?
-1°C -2°C 0°C 6°C 2°C
Fri Sat Sun Mon Tue
(A)
(B)
(C)
(D)
(E)