2011 袋鼠数学 C-Benjamin 真题 答案 详解

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英文真题

3 point problems
PROBLEM 01
Basil wants to paint the word KANGAROO. He paints one letter each day. He starts on Wednesday. On what day will he paint the last letter?
(A) Monday (B) Tuesday (C) Wednesday (D) Thursday (E) Friday

PROBLEM 02
A motorcyclist rode a distance of 28 km in 30 minutes at a constant speed. At what speed did he drive, in km per hour?
(A) 28 (B) 36 (C) 56 (D) 58 (E) 62

PROBLEM 03
A square of paper is cut into two pieces using a single straight cut.
Which of the following cannot be the shape of either piece?
(A) a square (B) a rectangle (C) a right-angled triangle (D) a pentagon (E) an isosceles triangle

PROBLEM 04
Hamster Fridolin sets out for the Land of Milk and Honey. His way to the legendary Land passes through a system of tunnels. There are 16 pumpkin seeds spread through the tunnels, as shown in the picture.
What is the highest number of pumpkin seeds Fridolin can collect if he is not allowed to visit any junction more than once?
(A) 12 (B) 13 (C) 14 (D) 15 (E) 16

PROBLEM 05
In Crazytown, all the houses on the right side of Number Street have odd numbers. However, Crazytowners don't use numbers containing the digit 3, though they use every other number. The first house on the right side of the street is numbered 1, and the houses are numbered in increasing order. What is the number of the fifteenth house on the right side of the street?
(A) 29 (B) 41 (C) 43 (D) 45 (E) 47

Level Benjamin – Class 5 & 6

中英双语真题

3 point problems
PROBLEM 01 Basil 想画袋鼠这个词。他每天画一个单词。他从星期三开始 他将在哪一天画最后一个字母?
Basil wants to paint the word KANGAROO. He paints one letter each day. He starts on Wednesday. On what day will he paint the last letter?
(A)Monday (B)Tuesday (C)Wednesday (D)Thursday (E)Friday

PROBLEM 02 一名摩托车手以恒定速度在30分钟内行驶了28公里。他以每小时多少公里的速度行驶？
A motorcyclist rode a distance of 28 km in 30 minutes at a constant speed. At what speed did he drive, in km per hour?
(A)28 (B)36 (C)56 (D)58 (E)62

PROBLEM 03 使用一次直线切割将一张正方形的纸切成两块。 A square of paper is cut into two pieces using a single straight cut.
下列哪项不可能是任一块的形状？ Which of the following cannot be the shape of either piece?
(A)a square (B)a rectangle (C)a right-angled triangle (D)a pentagon (E)an isosceles triangle

PROBLEM 04 仓鼠Fridolin出发前往牛奶和蜂蜜之地。他前往传说中的土地要经过一个隧道系统。如图所示，16颗南瓜种子散布在隧道中。 Hamster Fridolin sets out for the Land of Milk and Honey. His way to the legendary Land passes through a system of tunnels. There are 16 pumpkin seeds spread through the tunnels, as shown in the picture.
如果不允许Fridolin多次访问任何路口，最多可以收集多少南瓜种子？ What is the highest number of pumpkin seeds Fridolin can collect if he is not allowed to visit any junction more than once?
(A)12 (B)13 (C)14 (D)15 (E)16

PROBLEM 05 在小镇上，街道右边的房子都是奇数。然而，小镇上不使用包含数字3的数字，尽管他们使用其他所有数字。The first house on the right side of the street is numbered 1, and the houses are numbered in increasing order. What is the number of the fifteenth house on the right side of the street?
(A)29 (B)41 (C)43 (D)45 (E)47
在小镇上，街道右边的房子都是奇数。然而，小镇上不使用包含数字3的数字，尽管他们使用其他所有数字。街道右侧的第一栋房屋编号为1，房屋按顺序编号。街道右边第十五栋的门牌号是多少？ Level Benjamin-Class 5 & 6