2019 袋鼠数学 D-Cadet 真题 答案 详解

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英文真题

KSf 2019 - Problems Cadet (Class 7 & 8)

Time Allowed: 150 minutes

SECTION ONE - (3 point problems)

1. Which cloud contains four even numbers? (A) 3 9 6 5
   (D) 1 9 6 3

(B) 33 3 13 23
(E) 10 2 34 58

(C) 3 30 27 9

1. How many hours are there in ten quarters of an hour?
   (A) 40
   (D) 3

(B) 5 and a half
(E) 2 and a half

(C) 4

1. A 3 x 3 x 3 cube is built from 1 x 1 x 1 cubes. Then some cubes are removed from front to back, from left to right and from top to bottom, as shown. How many 1 x 1 x 1 cubes are left?
   (A) 15
   (D) 21

(B) 18
(E) 22

(C) 20

1. Three rings are linked as shown in the diagram. Which of the following diagrams also shows the three rings linked in the same way?
   (A)
   (B)
   (C)
   (D)
   (E)

2. Which of the diagrams below cannot be drawn without lifting your pencil off the page and without drawing along the same line twice?
   (A)
   (B)
   (C)
   (D)
   (E)