Heep Yunn School
Mid-year Examination (2010 – 2011)
SS1 Mathematics (Compulsory Part)
Paper 2
F.4 A, B, C, D, E
Time allowed: 45 minutes
Total marks: 30
Answer ALL the questions in this paper.
The diagrams in this paper are not necessarily drawn to scale.
Dec 2010
2
1.
mn 1
1 =
m n
A. 1
2.
4.
4a 2b
A.
C.
4(a 2b)(a + 2b)
4(a 4b)(a + 4b)
If
b
c , then y = a by b ac
b
D.
1 a
2
D.
ac b c b
a b
C.
22a 3b
B.
D.
4(a b)2
4(a 2b)2
B.
ac b bc C.
b c(a 1)
B.
71.25 cm2
C.
78.75 cm2
D.
89.5 cm2
B.
34.8% of X.
C.
45% of X.
D.
55.6% of X.
1 of the students in a class passed in a test. After taking a re-examination, 25%
3
of the failed students passed. Find the total pass percentage of the class.
B.
45%
C.
50%
D.
The number of planes of symmetry of a regular tetrahedron is
A. 2
C. 4
9.
m n Originally,
A. 40%
8.
D.
If X is 80% greater than Y, then Y is
A. 20% of X.
7.
m2 n2 If the length and width of a rectangle are measured as 8 cm and 10cm respectively and all measurements are corrected to the nearest cm, then the least possible area of the rectangle is
A. 63 cm2
6.
B.
1
2
C.
Factorize 4a 2 16b2 .
A.
5.
m4 n4 4a
=
8b
A.
3.
B.
B.
D.
3
6
Which of the following can be obtained by a reflection of
A.
B.
C.
?
D.
60%
P.2
10. A cone is formed from the sector. The length of arc is 10 and the radius is 13. The height of the cone is
A. 12
C. 10
B.
D.
11
9
11. The heights of two similar cones are in the ratio 2:3, the ratio of their volumes is
A. 2 : 3
B.
4:9
B.
D.
36
45
C.
6:9
C.
0.3
D.
8 : 27
D.
2
12. In the figure, x =
A. 30
C. 40
13. Which of the following is a rational number?
18
A.
2 18 3
B.
14. If a and b are real numbers such that ab 0, which of the following must be true? a I.
0
b
II. a b < 0
III. a 2 b2 0
A. I only
15.
B.
III only
C.
I and III only
D.
I, II and III
B.
24
C.
24
D.
24i
B.
i1
C.