What Does It Mean When They Are American

NSS MATHEMATICS IN ACTION
HONG KONG DIPLOMA OF SECONDARY EDUCATION EXAMINATION
MOCK PAPER

MATHEMATICS Compulsory Part
Paper 2
Time allowed: 1 hour 15 minutes

1.

Read carefully the instructions on the Answer Sheet and insert the information required in the spaces provided.

2.

There are 45 questions in this book. All questions carry equal marks.

3.

Answer ALL Questions. You are advised to use an HB pencil to mark all the answers on the Answer Sheet. Wrong marks must be completely erased with a clean rubber.

4.

You should mark only ONE answer for each question. If you mark more than one answer, you will receive NO MARKS for that question.

5.

No marks will be deducted for wrong answers.

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28. The box-and-whisker diagram below shows the distribution of the heights (in cm) of 40 students in a class. Find the number of students whose heights are between 145 cm and 150 cm.

A.
B.
C.
D.

5
10
20
30

If there are 840 students in the international school, estimate the number of Australian students in the school. A.
196
B.
208
C.
216
D.
224
Section B
31.

29. {a , a, a + d, a + 3d and a + 6d} is a group of numbers. Which of the following must be true?

A.
B.

I. The mean of the group of numbers is a + 2d.
II. The median of the group of numbers is a + d.
III. The mode of the group of numbers is 2.
A.
B.
C.
D.

C.
D.

I and II only
I and III only
II and III only
I, II and III

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NSS MIA 2012 Mock Paper (Compulsory Part) - Paper 2

1

–6–

ab b 

2 a b ba 2

1 a2 a2  b2 b2 a2  b2 a 2  2ab  2b 2 a2  b2

32. Which of the following best represent the graph of y  2 log 3 x ?

x
2 x 1
34. Solve 16  2 

A.

A.
B.
C.
D.

B.

15
 0.
2

5
2
5 or –3
2
5 log 8 log 5  log 2 log 4

35. If a and k are real numbers and a  11i  (2  3i )(3  ki) , then

A.
B.