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英文真题

KSf 2013 - finalized problems Junior
[3 points]

1. The number 200013 - 2013 is not divisible by

(A) 2. (B) 3. (C) 5. (D) 7. (E) 11.

2. Mary drew six identical squares, each containing a shaded region.

How many of the regions have perimeter equal in length to the perimeter of one of the squares?
(A) 2 (B) 3 (C) 4 (D) 5 (E) 6

3. Mrs. Margareth bought 4 cobs of corn for each person in her family, which has four members. She got the discount shown in the sign.

Corn sale
1 cob 20 cents
every sixth cob is free
How much did she pay?
(A) 0,80 EUR (B) 1,20 EUR (C) 2,80 EUR (D) 3,20 EUR (E) 80 EUR

4. Three of the numbers 2, 4, 16, 25, 50, 125 have product 1000. What is the sum of those three numbers?

(A) 70 (B) 77 (C) 131 (D) 143 (E) 145

5. Six points are marked on a square grid with cells of size 1 x 1, as shown.

Kanga wants to choose three of the marked points to be the vertices of a triangle. What is the smallest possible area of such a triangle?
(A) (\frac{1}{4}) (B) (\frac{1}{3}) (C) (\frac{1}{2}) (D) 1 (E) 2

6. Which of the following is equal to (4^{15} + 8^{10})?

(A) (2^{10}) (B) (2^{15}) (C) (2^{20}) (D) (2^{30}) (E) (2^{31})

7. The outside of a cube is painted with grey and white squares in such a way that it appears as if it was built using smaller grey cubes and white cubes, as shown. Which of the following

中英双语真题

Kangaroo Math Competition 2013 (Malaysia) - Junior
3 points

1. The number 200013-2013 is not divisible by

Nombor 200013-2013 tidak boleh dibahagi dengan
200013-2013不被什么整除?
(A) 2. (B) 3. (C) 5. (D) 7. (E) 11.

2. Mary drew figures on identical sheets of paper in form of square, one by one. How many of these figures have perimeter equal to the perimeter of the sheet of paper?

Mary在一张正方形的纸上涂黑。有多少个阴影部分的周长和纸张的周长一样？
Berapakah bilangan bentuk-bentuk tersebut yang mempunyai perimeter sama dengan kertas tersebut?
(A) 2 (B) 3 (C) 4 (D) 5 (E) 6

3. Mrs. Margaret bought 4 cobs of corn for everyone in her 4-member family. In the shop she got the discount the shop offered. How much did she pay?

Mrs. Margaret为她的四口之家每人买了4支玉米棒子。店里提供的折扣是多少？问她共需付多少元？[注：板上写：“大减价——1支玉米棒20仙——凡购买五支送一支”]
(A) 0,80 (B) 1,20 (C) 2,80 (D) 3,20 (E) 80

4. Three of the numbers 2, 4, 16, 25, 50, 125 have product 1000. What is their sum?

Tiga di antara nombor 2, 4, 16, 25, 50, 125 mempunyai hasil darab 1000. Apakah hasil tambah mereka?
2、4、16、25、50、125中三个数字的积是1000。求这三个数字的和。
(A) 70 (B) 77 (C) 131 (D) 143 (E) 200