pmr trial 2012 math (perak) q&a - wordpress.com · 2012. 9. 22. · k1 n1 2 3(a) (b) 4 3 4 –...

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SULIT

JABATAN PELAJARAN PERAK

PEPERIKSAAN PERCUBAAN PMR TAHUN 2012 MATHEMATICS 50Ogos2012

MATHEMATICS

PERATURAN PEMARKAHAN


ANSWER MATHEMATICS PAPER 1

1 C 21 A

2 C 22 C

3 B 23 A

4 C 24 B

5 B 25 A

6 D 26 D

7 D 27 A

8 B 28 D

9 C 29 A

10 B 30 B

11 C 31 B

12 C 32 B

13 C 33 C

14 A 34 A

15 A 35 B

16 B 36 B

17 B 37 D

18 C 38 C

19 A 39 B

20 A 40 D


MARKING SCHEMEMATHEMATICS PAPER 2

No Solution and Mark Scheme Sub

Mark

Full

Mark

1 289

× 67

83

or 2 23

K1

N1 2

2 0.075 or 403

68.78

K1

N1

2

3(a)

(b)

43

4 – ( � 32

)

112

or 5 12

or 5.5

N1

K1

N1 3

4(a)

(b)

�22 3x – x = 7 + 3 or – 3 – 7 = x – 3x x = 5

N1

KI

NI 3

5�

Image A’B’C’ correctly drawn Note :

1. Award N1 : Any one side drawn correctly OrCorrect image drawn using dotted lines OrCorrect image drawn by sketching

2. Ignore label

3. Accept gap or extension 41

� square grid

4. More than 1 image drawn, deduct 1 mark from N2 mark.

N2 2


A

B

C

A'

B'

C'

6

L

M

N

L'

M'

N'P

Point P mark correctly Note :

1. Award P1 if only intersection line drawn

2. Accept < 41 square grid for the point P

P2

2

7(a) (b)�

2x + y w² � 2w � 4w + 8 w² � 6w + 8

N1

K1

N1 3


8(a)

(b)

( 3x + 1 )( x – 1 )

4(x2 � 25) or 4(x2 � 52)

4(x + 5)(x � 5)

P1 P1

N1 3

9

3(2) (2 8 )

4y

x� � or 2

3(4 ) 2 (2 8 )8

x x yx

� � or

6 2 84

yx

� � or 2

12 4 168

x x xyx

� �

xy

484� or 2

8 168

x xyx� or 4(1 2 )

4y

x� or 2

8 (1 2 )8

x yx�

1 2y

x�

K1

K1

N1

3

10 x � 2 x � 9 2, 3, 5, 7

K1

K1 N1

3

11 3P = Qr + 2r r (Q+2) = 3P

23�

�Q

Pr

P1

P1

N1 3

12(a)

(b)

7

321

29

��m or 35�m or 3

5

mm

2m

N1

K1

N1 3


13(a)

(b)

Age (years)

Umur (tahun) FrequencyKekerapan

Age × Frequency Umur × Kekerapan

1 10 10

2 8 16

3 7 21

4 6 24

5 9 45

Complete table

nya40

116 or nya40

)4524211610( ��

2.9 or 1029 or

1092

N1

K1

N1

3

14

JanJan

FebFeb

MarMac

AprApr

MayMei

MonthBulan

Profit(RM)Keuntungan (RM)

500

1000

1500

2000

2500

3000

3500

All points plotted correctly Note: 4 or 3 points plotted correctly – award P1 Straight line passes through all the5 points Note: Sketch or dotted line, N0

P2

N1

3


15

Net complete and correctly drawn Note: 2 or 3 surfaces correctly drawn – award N2 Only one surface correctly drawn – award N1 Sketch or dotted line – award N0

N3

3

16(a)

(b)

(c)

JL Note: JL correctly drawn award P1 i. Arc with centre L and radius 4 units ii. Parallel line 3 units from straight line ML Mark intersection

P2

K1 K1

N1 5

17(a)

Correct construction of 60o at Q Arc 9� 0.1 cm from P intersecting any line drawn from Q Complete diagram Correct construction of perpendicular line from R to S

N1 N1 N1 K1


(b)

P Q

R

8.4 � 0.1 cm

N1 5

18(a) (b) (c)�

�Uniform scale on the y-axis in the range – 10 � y �17 All 7 points correctly plotted

Note: 6 or 5 points plotted correctly – award KIN0 Smooth curve passes through all the 7 points

K1

K2

N1 4

19(a)

(b)

�Q or �PQR or �RQP

QR or RQ

N1

N1 2

20 Identify RT = 4 Identify PT = 15 – 4 11

N1

K1

N1 3


pmr trial 2012 math (perak) q&a - wordpress.com · 2012. 9. 22. · k1 n1 2 3(a) (b) 4 3 4 –...

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