WAH KIU YAT PO
報日僑華
一期星
日九月四年四八九一圈公年三十七國民華中
2
+2x+8=0 D.
2x+2=0
-2x-2=0
((0,1)
育教僑華
頁三第張六第日九初月三年子甲歷夏
600 in the fourth
1984
week. If the mean for
中學會考試題預習專欄
825 transistors, then
is
數學
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MATHEMATICS (29)
H.K. LO
MILI & DALE PRESS LTD.
Revision Exercise
Paper II:
Time allowed: 14 hours
If
then.
A
A-1, B=0
B-3
B. A-2,
€. A-3, B2
then y
D. A-1, B=2
E. None of those
Which of the followif
4
a factor of x-81
B. X-9
16.
the four weeks was
A. 206
C450 825
B. 375
D. 750
The monthly income
of Mr. Ho is SN. He
2 5
spent. of his
monthly income on
rent and of the
remainder on food.
He was left with. x. then x=
N
C. Nxx
B. Nxg*云 D. Nx2x2
None of these
√5.13-13, 13-13-13-
A34
C. 3
B. 32
D. E. None of these a, b and c are non- zero integers; if a+b+c={}, then the value
// a ( + - ) + b ( − +2 ) + c ( +})
+2x=8=0
-2x-8=0
24. The following figure
shows the graph of
Which of the follow-
ing is NOT correct.
C. co
B. b-4ac>! D. b>0 F. None of the above. 25. Which of the follow-
ing graphs represents
2
+8+
02-2
B.. D.
Sp(p-2q)
E. None of these.
then y
5. The coefficient of x
in (2x →Jxy+43
3xy-3x2) is
A. 6
B. 12
C. 210
DA 15-
E. None of the?
17. Which of the
following is nat rational number?
A.. log 1000- D. 16
12+3
B.
O..
3.1416
18. Th
E.
length of a rectangle is twine. as its width. Tf the perimeter of the rectangle is x metres, then the area of the
rect
in m
E. 15
If 8x+21y÷11 and
4x-9y=-1, then
A. X-3
PX-2
y=3
AD BD DC
ABBD BC
2
(111) AC=CD-CR
A. (1) only
B. (11) only.
C. (111) only
D. (JI) and (ITT)
only
E. All of them
In the figure, CD-
E. 7 40. In the
In the figure, AR=b, the area of triangle ACD-
usin
B. 180-x.
C. 90-4x D. 90-x E. *
41. The height of a
right circular cone is increased by 200% and its base radius is increased by 100% The ratio of the volume of the cone so formed to that of the original cone is
B. b tan
C. th tan50
E.
32
D. zb (sin50-sin20
b (ten50°-Lan20")
Which of the follow
ing statements
is/are true
· (1)
tan(90 +0)
tang
(x,y)x+y > 1
and x+y1
and
( x, y ) = x2 + y
and x+y>1
and xy 1
E.
y) : x + y2 <1
or x+y>
48. P is a point on the
diagonal AC of the
square "ABCD, If AP-4 and CP=2 then PB-
D
c. 10 E. √20
49.
In the figure, 0
the centre of the
circle, a+h=
A 27:1
C. 6:1
D. 35:1
42.
B. 8:1
D. 12:1
In the figure, it the
equation of the
straight line is
xcos/+ysin<-p=0, then
C. 37. E. 75
Two dice are rolled, the probability that getting a sum not less than 10 is
11.
1.
7. Which of the following
statements is/
false if 0 < x
(1)
(II).
(111) ->1
19.
1:8
The average age of class of n boys is X years. Three new boys join the class whose ages are (x-1), (x+1) and (1+2) years. What is the new average age of the class?"- nx+3x+2
6x+2
D. 3n+9
nx+3x+2
B.
3x+1
E
A. (1) only
H. (II) only
C. (111) only
20.
D. (II) and (III) only
E. None of them
If the length of
rectangle is increased
by 10% and the area
remains unchanged, then the width is decreased by
A. 9%
C. 11%
E. 9-12
B.
-7 and 7 are the
roots of
$90 is paid for › task, which X can do
3 days of 8 hours each, Y in 4 days of 9 hours each, and & in 6 days of 10 hours each. Then the ratio of their hourly pay is
A. 15:10:6 B.
6:10:15.
3:46
E:
: 9:10 5: 5
21. Which of the follow-
ing diagrams gives
Sa
Jf X-2
2x
factor of.
then
ક
(11) cos(-4)=c030
(11]) sin20-2sing
A. (1) only
B. (II) only
C. (III) only
D. (1) and (II) only
E. All of them
33. If tan(0-45°)=1.7321
then
A. 105
43
B.
22930
C. 15° : D. 75.58
E.
54. Which of the follow-
ing is correct in
general?
A.
sin20+cos20-1
B. sin(90°+6)=rose
n2¿0+cos210=1
sin
tan450o-
·E. sin20 sin50°-
sin309
C. 120
F. 90°
4 straight line of
inclination 135 and
passes through (1, has the equation, A. y=x+1
B. y==x+3
Cy--x-3.
D2 y=x+1
By=x+3:
(Ex−1)2+4(2-y)2=16
represents a circle
with
centre rad:
51. A bag
18
Contains six
each marked a number. The numbers marked in the cards are 1,2,3,4,5 and 6. Two cards are drawn, the probabi- lity that the sum is divisible by 4 is
A.
35. 1+sin}T=
C. 1+T
then which of
E. 1-T
27. If f(x)
polynomial and
the following is a factor of f(x)
The figure shows part of the graph of
A. (4,-2)
B. (2,2)
(2,2)
D. (7,2) E
45. In the figure, ABCD is a parallelogram, BEAD and DF
4B,
If AR-12 cm, DR 5 cm. and BE-10 cm, then the perimeter of ABCD is
5 coins are toss the probability of getting exactly heads is
A
2x-3
B. ~14
D. -x-49-0
-x+49=0.
If x+y=a and xy
then (x-y)-
2
A. a-b
2
B.
-4b
2
4(x+2y)2.
A. 2(x-by)2
B. 4(x-ży)2 E. 2(x+\y)2
C. 4(x+y)
12. (x-1)2 -(x+1)2 -
C. O
D.
E. 2(x2 +2)
A manufacturer
producted 900" transistors in the
first week, x in the second week, 3x in the third week and
quadratic équation with roots 143 and 1-3 is
C 3x-2
-E. 1(x-3)
2
B. 2x+3
D. 3x+2
28 If {x+x-2 is a
factor of f(x), then
1 (~} ) − f(~~) −0
(-)-r()-0
C.
()-(-)-0
F. f (-2) = f({})=0
E = f(2) = f (-) •0__
29. If x+1 is a factor of
ax+hxcx+d, then
A. d=0
B. d=1
C. a-c-b-d
·D. a+c=b+d
E. a+b+c+d=0).
50. 11 > 0; b÷0 and
c0, which of the following graphs represents ax+by+c=0
A
y=sin24
B. y=aingo®
C. y=2sine®
D. y=2cose
E. y=cosze
In the figure, 0 is the centre of the circle
A. 30
C. 80
B. 70 DX-40
B. 50
58. Which of the follow-
ing a statements is/are true?.
A. 18 cm.
C.
24
B. 44 cm
ཕྱི རྩ ་ ;
cm
B. 20 cm 36
46. In the figure,
the
cross is formed by five identical squares. The ratio of the area of the shaded part to the area of the whole figure is:
A. 1:5
C. 1:15
1:10 1:16
E. 1:20.
47. The shaded regi oni s
the figure is
54
If I and gure functions such that
f(x)
and g(x)
X+1 which of the follow- is the value of f(x()) ?
E.
In the figure, AB÷4C
and M is the mid-
point of BC=x="
B
A.
130
E. 200
B. 120°
150.9
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