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This presentation contains Credit past paper questions complete with solutions.
The questions are sorted into topics based on the Credit course.
To access a particular question from the main grid just simply click on the question number.
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To begin click on Main Grid.
PRESS F5 TO START
F
Topic2001 2002 2003 2004 2005
I II I II I II I II I II
Calculations 1 1 1 1 1
Fractions 2 2 2 2 2
Scientific Notation 1 1 1 1 1
% Calculations 3 2 6 4 3
Circle Geometry 6 10 8 10 10
Similarity 12 9 6
Area/Volume 5 8 11 5 13 4 12 9 12 3 8
Speed/Distance/Time 11
Triangle Calculations 6 10 7 4 3 6 7 5 6 7 5 7
Trig Equations & Graphs 7 8 9 10 11
Patterns 9 11 11 8
Brackets/ Factorising 5a 3 5
Quadratics 8 9 3 8 11 4
Surds & Indices 10 10 11 12 11 11
Algebraic Fractions 5b 4
Formulae 11 5 3 9
Ratio/Proportion/Variation 9 7 10 10
The Straight Line 6 4 12 6 10 2 5 9
Equations/Inequations 4 3 6
Simultaneous Equations 13 9 7 8
Change The Subject 6
Functions 3 4 4
Statistics 5 7 2 8 8 9 2 5 7 3 4 7 2
2011
-
2006
-201
0
Topic2006 2007 2008 2009 2010
I II I II I II I II I II
Calculations 1 1 1 1 1
Fractions 2 2 2 2
Scientific Notation 1 1 1
% Calculations 3 1 5 1 7 8 6
Circle Geometry 8 12 9 11 6
Similarity 11 8 4 7
Area/Volume 7 7 11a 12 2 11 5b
Speed/Distance/Time
Triangle Calculations10 5 6 6 8 11 5 7 8 5 11 9
5a 8 10 12
Trig Equations & Graphs 10 13 10 12 13
Patterns 14 7 12 10
Brackets/ Factorising 5a 4a 5 2 11c 4ab 4 2
Quadratics 8 2 11b 13 8 11 10 3 10 4 4 12
Surds & Indices 4bc 7 9 9 10 11 4c 5 8
Algebraic Fractions 5b 5
Formulae 9
Ratio/Proportion/Variation 7 10 9 6 7 9 11
The Straight Line 4 6 4 9
Equations/Inequations 6 11 4 6 12 13 10 3 11
Simultaneous Equations 9 11 4 8 7
Change The Subject 4 3 9 3
Functions 3 3
Statistics 2 3 3 2 3 6 5 6 5 3
2001
-200
520
11 -
Topic2011
I II I II I II I II I II
Calculations 1
Fractions 5
Scientific Notation
% Calculations 1, 4
Circle Geometry 5, 8
Similarity 6
Area/Volume 9, 11
Speed/Distance/Time
Triangle Calculations 10 7
Trig Equations & Graphs 12
Patterns 12
Brackets/ Factorising 2 2
Quadratics 3, 13
Surds & Indices 9
Algebraic Fractions
Formulae 10
Ratio/Proportion/Variation 11
The Straight Line 8
Equations/Inequations 4
Simultaneous Equations 7
Change The Subject
Functions 3
Statistics 6
2001
-200
520
06-2
010
a
acbbxcbxax
2
4 are 0 of roots The
22
Sine rule:
Cosine rule:
Area of a triangle:
Standard deviation:
bc
acbbccba
2A cosor A cos 2
222222
C
c
B
b
A
a
sinsinsin
Cabsin2
1 Area
size. sample theis where
,1
/
1
222
nn
nxx
n
xxs
Main Grid
Main Grid
Solution
F
Q1 BODMAS
3.1 + 2.6 × 4 2.6 × 4 = 10.4
3.1 + 10.4 = 13.5
Main Grid
Main Grid
Solution
F
Q2
24
78
24
19924
1128738
)148()293(3
14
8
293
24
8
53
Main Grid
Main Grid
Solution
F
Q3
401525)5(
)15(25)5(
)53()5()5(
3)(2
2
f
f
f
mmmf
Main Grid
Main Grid
Solution
F
Q4
3
155
16138
16)13(8
)4( 44
)13(2
x
x
xx
xx
xx
Main Grid
Main Grid
Solution
F
Q5
10 15 20 25 30 35 40 45 50 55Time in Days
60
Timberplan
Allwoods
Furniture Delivery Time
For consistency of delivery the furniture maker should use Timberplan, because a smaller interquartile range suggests a smaller range of delivery times, therefore, more consistent.
Main Grid
Main Grid
Solution
F
Q6
atM
atat
atM
at
atM
AT
AT
AT
1
))((
22
Main Grid
Main Grid
Solution
F
Q7
60
31
600
310 years) 3 than P(less
600
201608050 years) 3 than P(less
60
1
600
10 y Probabilit
cars 70604200 :4200 sample aIn
Main Grid
Main Grid
Solution
F
Q8
4
321
35.045.04
5.0at valuemin.symmetry of Because
)0,5.0( )0,5.1(
5.1 and 5.0
0)32)(12(
0344
:0 Cuts
)3,0(
330404
:0 Cuts
2
2
2
y
y
y
x
CB
xx
xx
xx
y x-axis at
A
y
x y-axis at
Main Grid
Main Grid
Solution
F
Q9
)124)(12(18
28 )12)2)((12(18
)1)(1(1
)177)(17(17
23
3 323
23
23
pppp
pppppp
nnnn
Main Grid
Main Grid
Solution
F
Q10
4
2
24
26
24
236
24
72
24
24
24
3
Main Grid
Main Grid
Solution
F
Q11
20
12
minimum. a is 2 when valueMaximum
1
22
20210
2
2010
8
20
2
20
0
c
3
I
c
I
c
c
c
Main Grid
Main Grid
Solution
F
Q1
910526.5
5256000000
100006024365
Main Grid
Main Grid
Solution
F
Q2
28.1647.1
9
489.7111531.71130
11010
3.84331.71130
1
22
2
s
s
nn
xx
s
3.8410
3.843mean
In rural areas petrol prices are higher on average and there is a greater variation on prices.
Main Grid
x x2
81.0 6561
83.9 7039.21
84.2 7089.64
84.2 7089.64
84.4 7123.36
84.8 7191.04
84.9 7208.01
85.1 7242.01
85.2 7259.04
85.6 7327.36
843.3 71130.31
Main Grid
Solution
F
Q3
907.53 £150721.28 46186.25 104 :Value
28.721 46£)92.0(000 60 :Contents
25.186 104£)05.1(000 90 :House
3
3
Main Grid
Main Grid
Solution
F
Q4
63
63
)3( 23
1
2 3
1
12
4
012
26
xy
xy
xy
cMcMxy
6
11419
1381512
24412
4654
63
x
x
xy
xy
xy
xy
4,6
4
123
663
y
y
yQ4b
Main Grid
Main Grid
Solution
F
Q5
cmd
hr
hr
cmhrV
3.726.763.32
63.32.131214.3
49.49749.497
49.497
49.4971525.325.314.3
2
32
Main Grid
Main Grid
Solution
F
Q6 We need to calculate angle W. Use the sine rule to calculate angle P.
o
o
o
W
P
k
KpP
K
k
P
p
8.1572.22180 P WBearing
2.228.27130180
8.27)467.0(sin
467.0410
130sin250sinsin
sinsin
1
Main Grid
Main Grid
Solution
F
Q7
oooo
o
o
o
o
o
o
oo
xx
x
x
x
x
x
x
4.3556.4360 and 6.1846.4180
6.4)081.0(sin Angle Related
081.0sin
2161.0sin
161.0sin2
1839.0sin2
1sin2839.0
1sin240tan
1
Main Grid
Main Grid
Solution
F
Q8 Volume = end area × depth
3
2
75.275
515.55
15.55
100sin1485.0
sin2
1
cmV
V
cmA
A
cabA
o
o
Main Grid
Main Grid
Solution
F
Q9
4
27
427 94
3
32
3
22
22
L
Lkk
Lkk
Lkk
RRd
kLR
d
LR
Main Grid
Main Grid
Solution
F
Q10
oA
A
bc
acbA
5.107301.0cos
301.0336
101cos
12142
211214
2cos
1
222222
h70cm
(180 – 107.5 = 72.5º)
cmh
h
h
o
o
8.66
5.72sin70
705.72sin
Main Grid
Main Grid
Solution 11c
Solution 11ab
F
Q11ab
60050
2030600
)20)(30( )
30 )
2
2
xxA
xxxA
xxAb
xla
Main Grid
Solution 11c
Q11c
cmcm
cbaa
acbb
xx
xx
cm
25by 35 dimensions Minimum
24.41by 41.34 dimensions Minimum
41.54 41.4 2
346050
2
346050
2
)960(250050
12
)24014(5050
240 50 1 2
4
024050
24050
2406000.4 600 of 40%
6002030 Area Original
2
2
2
2
2
Main Grid
Main Grid
Solution
F
Q1 BODMAS
7.18 – 2.1 × 3
2.1 × 3 = 6.3
7.18 – 6.3 = 0.88
Main Grid
Main Grid
Solution
F
Q2
2
11
2
3
24
363
4
8
94
3
8
94
3
8
11
Main Grid
Main Grid
Solution
F
Q3
1
33
225
)1(25
x
x
xx
xx
Main Grid
Main Grid
Solution
F
Q4
6)3(
)15(9)3(
)35()3()3(
5)(2
2
f
f
f
xxxf
Main Grid
Main Grid
Solution
F
Q5
3
2
23
22
63
4
22
4
22
22
qp
qp
qpqp
qp
qp
qpqp
qp
Main Grid
Main Grid
Solution
F
Q6
tLh
htL
thL
thL
2
2
2
2)( 2
1
Main Grid
Main Grid
Solution
F
Q7
8
1
40
5cos
40
361625cos
452
645cos
2cos
222
222
A
A
A
bc
acbA
Main Grid
Main Grid
Solution
F
Q8
10 15 20 25 30 35 40 45 50 55Number of replies
60
Posted
Handed Out
Medical Questionnaires
You could also draw a back-to-back stem and leaf diagram.
Main Grid
Main Grid
Solution
F
Q9
4 and 1
0)4)(1(
043
3512
)()(
2
2
xx
xx
xx
xxx
xgxf
Main Grid
Main Grid
Solution
F
Q10
35
3233
3239
3227
Main Grid
Main Grid
Solution
F
Q11
2
68
238
y
yy
yy
Main Grid
Main Grid
Solution
F
Q12
129
7
12 9
7
90
70
090
1282
hg
cM
cMhg
Main Grid
Main Grid
Solution
F
Q13
22.0
20.210
80.4168
60.268
20.142
30.134
g
g
gp
gp
gp
gp
16.0
64.04
30.166.04
30.1)22.03(4
p
p
p
p
92.0£44.048.0
)22.02()16.03(23
gp
Main Grid
Main Grid
Solution
F
Q1
3
5
104308.3
0034308.0
1006.1918
Main Grid
Main Grid
Solution
F
Q2
66.127£175.1150
Main Grid
Main Grid
Solution
F
Q3
8.2 .31
766.2 .2661 4
653
4
653
4
653
4
)56(93
22
)724(33
7 3 22
4 0732
2
22
cbaa
acbbxx
Main Grid
Main Grid
Solution
F
Q4
kmt
S
Tst
S
s
T
t
S
o
o
o
9.296105sin
35sin500
sin
sin
sinsin
1054035180 Angle
kmh
h
h
o
o
8.190
40sin9.296
9.29640sin
V
S
296.9km
40°
h
Main Grid
Main Grid
Solution
F
Q5
3
2
2
2
2
2.11652.142913.0
2913.01413.015.0
1413.0
3.03.014.35.05.0
15.025.06.0
length area endVolume
mVolume
mA
m
rA
mA
TOTAL
CIRCLESEMI
RECTANGLE
Main Grid
Main Grid
Solution
F
Q6
2.1m
3.4 - 2.1 = 1.3m
a
x = 2a
mx
ma
3.365.12
65.172.23.11.2
Pythagoras Using
22
m8.03.11.2 Main Grid
Main Grid
Solution
F
Q7
produced. be
can tinskilogram-one 41 Therefore,
67.4160025000
5040020000
Colombian. of 600g and
Brazilian of 400g contains tin One
Main Grid
Main Grid
Solution
F
)4.0,4.156B( )4.0,6.23A(
4.1566.23180 and 6.23
)4.0(sin
4.0sin1
oo
ooo
o
o
x
x
x
Q8
Main Grid
Main GridSolutionF
Q9
minutes 6 Therefore,
33.5
163
276560
276 560
4280 15575 )
)2(280 )
)3(575 )
110)75()325( )
m
m
mm
mcmc
mcmcd
mcc
mcb
pa
Main Grid
Main Grid
Solution
F
Q10
22
r
kvT
r
vT
18.by multiplied isTension
180.59
0.5by divide and 3by Multiply 2
Main Grid
Main Grid
Solution
F
Q11
12
132168421
5n
32)2222(2 322
n
5
)(
Main Grid
Main Grid
Solution
F
Q12 Similar triangles.A
B
P
B1m
1.5m6m
mAPmPBPB
246 45.1
16 so
5.1
1
6
mB
B
height
height
33
162
6
1
again. ianglessimilar tr Using
Main Grid
Main Grid
Solution
F
Q1 BODMAS
2.14.87 15.04 + 1.2
6.24
Main Grid
Main Grid
Solution
F
Q2
28
17
56
34
56
6
56
2856
6
28
14
8
3
4
7
7
2
8
3
4
31
7
2
Main Grid
Main Grid
Solution
F
Q3
166
412126
)13(4)42(3
x
xx
xx
Main Grid
Main Grid
Solution
F
Q4
2
1
24
974
947)(
15)2(
)8(7)2(
)24(7)2(
47)(
t
t
t
ttf
f
f
f
xxf
Main Grid
Main Grid
Solution
F
Q5
)5)(32(
1572 2
xx
xx
Main Grid
Main Grid
Solution
F
Q6
1
55
56
56
532
52
25
10
14
73
k
k
kk
kk
kk
xy
M AB
Main Grid
Main Grid
Solution
F
Q7
£5 isbreakfast one ofCost
5
720915
7251015
24035
14523
b
bn
bn
bn
bn
Main Grid
Main Grid
Solution
F
Q8
40
1
10
1
40
4
Main Grid
Main Grid
Solution
F
Q9
25% of matchboxes contain fewer than 50 matches.
50 is the lower quartile and every quartile contains 25% of the sample.
Main Grid
Main Grid
Solution
F
Q10
pupils 75 75:15:5
teachers9 45:9:3
Main Grid
Main Grid
Solution
F
Q11
12
12
)1(
9
22
22
2
n
nnn
nn
n
Main Grid
Main Grid
Solution
F
Q12
323412
122
122
2
24
46488 33 23
2
Main Grid
Main Grid
Solution
F
Q13
xx
xTD
xxxDBDB
xTD
xDBTD
xx
xxx
32
6
23
6
32
1
3124
1A
1243A
2
2
2
22POCKET
2CLIPBAOARD
Main Grid
Main Grid
Solution
F
Q1
509054.5090006.15000 3
Main Grid
Main Grid
Solution
F
Q2
x x2 41 1681
43 1849
44 1936
47 2209
49 2401
52 2704
276 12780
1.48.16
5
1269612780
166
27612780
1
22
2
s
s
nn
xx
s
466
276mean
There is more variation in the price of milk than there is in the price of sugar.
Main Grid
Main Grid
Solution
F
Q3
kmh
h
h
h
h
Habbaho
o
7.47
2.2276
2.2276
8.11239002500
68cos305023050
cos2
6872140 H Angle
2
2
222
222
Main Grid
Main Grid
Solution
F
Q4
cmr
h
hrV
cmml
cmhrV
6.75.78
600
5514.3
600600
600
600600
1099145514.3
2
2
3
32
Main Grid
Main Grid
Solution
F
Q5
sides. 8 hasPolygon The
5or 8
058
0403
340
3402
320
2
2
nn
nn
nn
nn
nn
nn
Main Grid
Main Grid
Solution
F
Q6 SOH CAH TOA
cmSW
SW
SW
cmSV
SV
SV
o
o
o
o
65.6
25cos33.7
33.725cos
33.7
34sin1.13
1.1334sin
Main Grid
Main Grid
Solution
F
Q7
oB
B
B
B
BacArea
1.37603.0sin
603.063
38sin
sin6338
sin9145.038
sin2
1
1
Main Grid
Main Grid
Solution
F
Q8
8,1at Point Turning
8222
31112
312
1at T.P.symmetry By
2
36
6,0at 30106
31
3 and 1
y
y
xxy
x
k
k
k
xxky
ba
Main Grid
Main Grid
Solution
F
Q9
ml25.101375.330 Volume Large
375.38
27 Factor Scale
27:8
3:2 VolumeFor
3:2 Height For 33
Main Grid
Main Grid
Solution
F
Q10
2
x2 + x
3
mx
x
x
xxx
xx
4
13
4
522 OB So
4
5
54
944
32
Pythagoras Using
22
222
Main Grid
Main Grid
Solution
F
Q11
mphx
x
xx
xxxxxx
x
x
S
DT
6030
2 Speed Average
302 Speed Average
Time Total
Distance Total Speed Average
30150
5
150
32
5075 Time Total
2 Distance Total
75
Main Grid
Main Grid
Solution
F
Q1 BODMAS
77.243.32.6
43.31.153.4
Main Grid
Main Grid
Solution
F
Q2 BODMAS
5
12
10
22
10
22
10
814
5
4
10
14
10
14
2
7
5
2
2
13 of
5
2
Main Grid
Main Grid
Solution
F
Q3
2
1618
432 22
A
A
A
Main Grid
Main Grid
Solution
F
Q4
1
37
1
433
1
413
1
43
mm
m
mm
mm
mm
mm
mm
Main Grid
Main Grid
Solution
F
0 3 6 9 12 15 18 21 24 27 30
Average Monthly Temperature in Holiday Resort
Q5
Temp (ºC)
Main Grid
Main Grid
Solution
F
Q6
g4009
8450
8
9450 :So
8
9
8
11 isjar so
8
1 is %5.12
Main Grid
Main Grid
Solution
F
Q7
.90
1 than chancebetter a is
80
1 because
raffle School in the chancebetter a has He
90
1
1800
20 P(win)
80
1
1200
15 P(win)
Main Grid
Main Grid
Solution
F
Q8
1735
17 :So
17 , , , , ,
532
5 :So
5 , , , ,
yx
xyxxyxyx
xyxxyxyxxyxy
yx
yxyyx
yxyyxyx
4
123
1735
532
x
x
yx
yx
1 and 4 So
1
33
538
5342
yx
y
y
y
y
Main Grid
Main Grid
Solution
F
Q9
.360in curves complete 4 be will therebecause 4
2.- to2 from goesgraph because 2
o
b
a
Main Grid
Main Grid
Solution
F
Q10
The line must have a negative gradient (going down).
The line must cut the y-axis below zero.
y
x
y = –ax – b
Main Grid
Main Grid
Solution
F
Q11
3
11
3
1132
3103523252752
10
Main Grid
Main Grid
Solution
F
Q12
252555
52
10 so
10
10
22
rA
rd
d
dC
Main Grid
Main Grid
Solution
F
Q1
m12
8
1064.8
)60608(103STD
Main Grid
Main Grid
Solution
F
Q2
s453
230t
30t3
2
100t3
2-70
70v therefore litres30 loses container The
100t3
2v
100c 3
2
150
100M cMtv
min
Main Grid
Main Grid
Solution
F
Q3
x x2 49 2401
50 2500
50 2500
51 2601
52 2704
52 2704
53 2809
357 18219
41.12
6
1820718219
177
35718219
1
22
2
s
s
nn
xx
s
517
357mean
Main Grid
Main Grid
Solution
F
Q4
mg1288.0250 3
Main Grid
Main Grid
Solution
F
Q5 Find side a because it is opposite the smaller angle and will therefore be the shortest distance.
ma
a
H
Aha
H
h
A
a
o
o
6.118975sin
50sin1500
sin
sinsinsin
Main Grid
Main Grid
Solution
F
Q6 SOH CAH TOA
mPQ
PQ
o
o
1045tan10
1045tan
mPQPB 202 :So
ooo
oo
o
.
S
PS
PBS
4.1845463 degrees More
4.632tan
210
20tan
1
Main Grid
Main Grid
Solution
F
Q7
cm
Abccba
o
800.3228 length Rod
7.6451 length Rod
7.6451
3.154816006400
76cos408024080length Rod
cos2
222
222
Main Grid
Main Grid
Solution
F
Q8 2000 – 1800 = 200mm
500 – 200 = 300mm
500mm
C
A B
mm
mmAB
AB
AB
BCACAB
8004002 door ofWidth
400160000
160000
300500
Pythagoras Using
2
222
222
Main Grid
Main Grid
Solution
F
Q9
3
2
2
1902875.237 Volume
depth area Volume
75.23755.475 area Total
55.47
72sin10105.0
sin2
1 triangleof Area
725360 centreat Angle
cm
cm
cm
Cab
o
o
Main Grid
Main Grid
Solution
F
Q10
ooo
oo
oo
o
o
o
o
x
x
x
x
x
x
4.311,6.228
4.3116.48360
6.2286.48180
quadrants.4th and 3rdin
be willsolutions so negative isSin
6.4875.0sin angle Related
75.0sin
3sin4
21sin4
1
AS
T C
48.6º48.6º
Main Grid
Main Grid
Solution
F
Q11
m
xx
xx
xx
xx
xx
xxx
xxxx
623 lawn ofLength
2or 3
1
0213
0253
0253
253
33 :Lawn
251123111 :Path
2
2
2
2
Main Grid
Main Grid
Solution
F
Q1
92.036.78 1
3.8 – 0.92
2.88
BODMAS
Main Grid
Main Grid
Solution
F
Q2 BODMAS
30
35
5
7
6
5
5
21 of
6
5
30
105
30
3570
30
35
3
7
30
35
3
12
2
13
6
33
6
21
Main Grid
Main Grid
Solution
F
Q3
10% = 14 so 2.5% = 3.5
12.5% = 14 + 3.5 = £17.50
Main Grid
Main Grid
Solution
F
Q4
Possible outcomes = 36
Possible ways of getting 8 or 9 = 9
4
1
36
9 y Probabilit
Main Grid
Main Grid
Solution
F
Q5
24
8
0-4
6-2- M
C = 6
y = Mx + C
y = -2x + 6
Main Grid
Main Grid
Solution
F
Q6
5
2
52
52
612
x
xx
x
Main Grid
Main Grid
Solution
F
Q7 Speed Frequency Cuml. Frq.
30 1 1
40 4 5
50 9 14
60 14 28
70 38 66
80 47 113
90 51 164
100 32 196
110 4 200
200 cars therefore median between 100th and 101st
So median = 80km/hr Main Grid
Main Grid
Solution
F
Q8
4th term = 52 – 32
nth term = (n + 1)2 – (n – 1)2
= (n2 + 2n +1) – (n2 – 2n + 1)
= n2 + 2n +1 – n2 + 2n – 1
= 4n
Main Grid
Main Grid
Solution
F
Q9
Litres put in car = 3000 ÷ 75 = 40 litres
Litres used = 5 × 3 = 15 litres
Litres remaining = 40 – 15 = 25 litres
Litres used = kt
Litres put in car = c
2000
ktc
R 2000
Main Grid
Main Grid
Solution
F
Q10
5cm
4cm
a345
Pythagoras Using
22 a
5cm 7 – 3 = 4cm
b
345
Pythagoras Using
22 b
Therefore base = 2 × 3 = 6cm Main Grid
Main Grid
Solution
F
Q11
225
2224
2264
22364
2724)72(
f
2
1
4
2
2
2
2
2
4
22
224
2234
2324)(
2
t
t
t
t
t
ttf
Main Grid
Main Grid
Solution
F
Q12
2
13
1or 2
7
0)1(or 0)72(
0)1)(72(
0752
752
7)52(
7)52)(2(2
1
72
1
2
2
x
xx
xx
xx
xx
xx
xx
xx
bhA
Main Grid
Main Grid
Solution
F
Q1
15
882
1024.3
103103106.3
E
E
Main Grid
Main Grid
Solution
F
Q25.79
6
477
6
757971849177
Mean
x x – x (x – x)2
71 -8.5 72.25
75 -4.5 20.25
77 -2.5 6.25
79 -0.5 0.25
84 4.5 20.25
91 11.5 132.25
251.5
09.73.505
5.251
16
5.251
s
Main Grid
Main Grid
Solution
F
Q3
25.187
110sin21195.0
sin2
1
cmArea
Area
PqrArea
o
Main Grid
Main Grid
Solution
F
Q4
2.4 2.2
162.4 162.2 2
402
2
402
2
402-
2
)36(42-
12
)914(22-
9 2 12
4
092
92
2
2
2
2
cbaa
acbb
xx
xx
Main Grid
Main Grid
Solution
F
Q5
Using the converse of Pythagoras if 902 + 602 = 1102 then the triangle is right angled.
902 + 602 = 8100 + 3600 = 11700
1102 = 12100
11700 12100
So the slab is not a right angled triangle.
Main Grid
Main Grid
Solution
F
Q6
12m
5m
20m
h
Using similar triangles:
mh
h
485
12205
20
12
Main Grid
Main Grid
Solution
F
Q7 Angle A = 40°
Angle B = 294 – 270 = 24°
Angle V = 180 – 24 – 40 = 116°
kmv
B
Vbv
B
b
V
v
05.1124sin
116sin5
sin
sinsinsin
0
0
Main Grid
Main Grid
Solution
F
Q8
cmx
xx
xx
xx
xx
xx
xxxxx
62length side
3or 0
0)3(or 08
0)3(8
0248
248
)22(6222
2
2
23
23
Main Grid
Main Grid
Solution
F
Q9Fixed rental = £10
Call charge per minute = gradient
05.060
3
060
1013
gradient
Call charge per minute = £0.05 = 5p
Main Grid
Main Grid
Solution
F
Q10
12.5cm11.5cm
xº
oo
oo
o
x
x
x
23
074.23)92.0(cos
92.05.12
5.11cos
1
mlengtharc
dlengtharc
d
lengtharc
0.10
036.10360
2546
360
46
360
46
Main Grid
Main Grid
Solution
F
Q11
o144.7or 3.35
3
1sin
01sin3
oo
o
o
x
x
x
ooo
ooo
x
x
72.35or 65.17
7.144or 3.352
Main Grid
Main Grid
Solution
F
Q1
1.25 × 40 = 50
56.4 – 50 = 6.4
BODMAS
Main Grid
Main Grid
Solution
F
Q2
35
64
35
146
35
9056
7
18
5
8
7
42
5
31
Main Grid
Main Grid
Solution
F
Q3
4 – (-3)2
= 4 – 9
= -5
Main Grid
Main Grid
Solution
F
Q4
8x3
2y
8c
3
2
6
4
06
812m
Main Grid
Main Grid
Solution
F
Q5
Difference of 2 squares
4x2 – y2 = (2x + y)(2x – y)
3
yx2
yx23
yx2yx2
y3x6
yx4
22
Main Grid
Main Grid
Solution
F
Q6
x – 2(x + 1) = 8
x – 2x – 2 = 8
–x = 10
x = –10
Main Grid
Main Grid
Solution
F
Q7
ml540
2720 8
27160Cup Large of Volume
8
27
2
3Factor Scale Volume
2
3
14
21Factor Scale Length
3
3
Main Grid
Main Grid
Solution
F
Q8
y = (x – 1)2 – 4
Main Grid
Main Grid
Solution
F
Q9
a) x + y = 20
b) 5x + 2y = 79
c) 2x + 2y = 40
5x + 2y = 79
3x = 39
x = 13
Euan won 13 games.Main Grid
Main Grid
Solution
F
Q10
m12h
25300h
300h25
150h252
1
m15015202
1Area 2
Main Grid
Main Grid
Solution
F
Q11 a) C = 3x
b) 20 + 2 × 9 = £38 2(x – 6) + 20
c) 2(x – 6) + 20 < 3x
2x – 12 + 20 < 3x
2x + 8 < 3x
2x – 3x < –8
–x < –8
x > 8 so 9 sessionsMain Grid
F Main Grid
Solution
Q1
c = d
c = 3.14 × 2 × 4.96 × 107
c = 3.11488 × 108 km
Main Grid
F Main Grid
Solution
Q2
1686766s
5
673435234686
166
45434686
s
34686788272867368x
67756
454
6
788272867368x
2
2222222
..
.
.
On average children's pulse rates are faster but there is less variation. Main Grid
F Main Grid
Solution
Q3
324 ÷ 1.05 = £300
Slide 3Main Grid
F Main Grid
Solution
Q4
5
5354
53542 )c
m2m )b
4x11x3
4x12x3x )a
2
5
2
1
2
2
Main Grid
F Main Grid
Solution
Q5
o1o
o
22
31120M
2010
2M
1068MS
..tan
.tan
Main Grid
F
Main Grid
Solution
Q6B° = 74° + 50° = 124°
m30544305b
1693295b
1693295b
162829565000b
1242301102230110b
Bac2cab
2
2
o222
222
.
.
.
.
cos
cos
Main Grid
F Main Grid
Solution
Q7
28 × 18 = 504cm3
cm632770143
504
r
504L
504LrV
22
2
...
Main Grid
F Main Grid
Solution
Q8
2228g10022.28
22.28244.59
cm5944360
18143284Length Arc
..
Main Grid
F Main Grid
Solution
Q9
13n
10n 13n
10n13n )c
0130n3n
130n3n
1303nn
2 653nn2
1 )b
1443.5 )a
2
2
Main Grid
F
Main Grid
Solution
Q10 a) -31 × cos20 + 33 = 3.87m
b) -31cost + 33 = 60
-31cost = 27
cost = 27 ÷ -31 = -0.871
R.A. = cos-1(0.871) = 29.4
so: 180 – 29.4 = 150.6 seconds
c) 180 + 29.4 = 209.4 secondsMain Grid
F
Main Grid
Solution
Q11
AA
M
QP B C8
63
x
x3
44
6
x824PQ
6
x38
AC
AQBCPQ so
AC
AQ
BC
PQ b)
x3 AQ )a
Main Grid
• 2007 paper 1
Solution
Main grid
2007 Paper 1
• Ans :- 80.44
For 20 x 3.72 =74.4 1 mark
For adding 6.04 correctly 1 mark
Main grid
2007 Paper 1
Solution
Main grid
2007 Paper 1
2.
6
13
3
21÷
= 6
19X
5
3 1
2
Remember to
turn fraction
upside down
=
10
19=
10
91
Main grid
2007 Paper1
Solution
Main grid
2007 P1 Q12
4cm
5 cm
Remember
this is a radius By Pythagoras’ Theorem:-
x2 = 52 – 42
x2 = 9
X =3
So d = 5cm – 3cm = 2cm
x
Main grid
solutionMain grid
2007 Paper 1
Main Grid
Main grid
Solution
2007 Paper 1
Q13
Main Grid
a=2 , b=3
F Main Grid
Solution
2007 Paper 1
Q14
Main Grid
F Main Grid
2007 Paper 1
solution
Q5
Main Grid
F Main Grid
Solution
2007 Paper 1
Q7
Main Grid
F Main Grid
Solution
2007 Paper 1
Q9
Main Grid
F Main Grid
Solution
2007 Paper 1
Q10
Main Grid
F Main Grid
Solution
2007 Paper 1
Q6
Main Grid
F Main Grid
Solution
2007 Paper 1
Q11
Main Grid
F Main Grid
Solution
2007 Paper 1
Q4
Main Grid
F Main Grid
Solution
2007 Paper 1
Q3
Main Grid
2007 paper 2
F Main Grid
Solution
2007 paper 2
Q1
Main Grid
2007 paper 2
F Main Grid
Solution
2007 paper 2
Q2
Main Grid
2007 paper 2
F Main Grid
Solution
2007 paper 2
Q3
Main Grid
2007 paper 2
F Main Grid
Solution
2007 paper 2
Q4
Main Grid
2007 paper 2
F Main Grid
Solution
2007 paper 2
Q5
Main Grid
2007 paper 2
F Main Grid
Solution
2007 paper 2
Q6
Main Grid
2007 paper 2
F Main Grid
Solution
2007 paper 2
Q7
Main Grid
2007 paper 2
F Main Grid
Solution
2007 paper 2
Q8
Main Grid
2007 paper 2
F Main Grid
Solution
2007 paper 2
Q9
Main Grid
2007 paper 2
F Main Grid
Solution
2007 paper 2
Q10
Main Grid
2007 paper 2
F Main Grid
Solution
2007 paper 2
Q11
Main Grid
2007 paper 2
F Main Grid
Solution
2007 paper 2
Q 12
Main Grid
2007 paper 2
F Main Grid
Solution
2007 paper 2
Q 13
Main Grid
2007 paper 2
F Main Grid
Solution
2007 paper 2
Q3
Main Grid
2007 paper 2
2008 paper 1
Main Grid
Solution
F
2008 Paper 1
Q1
Main Grid
Main Grid
Solution
F
2008 Paper 1
Q2
Main Grid
Main Grid
Solution
F
2008 Paper 1
Q3
Main Grid
Main Grid
Solution
F
2008 Paper 1
Q4
Main Grid
Main Grid
Solution
F
2008 Paper 1
Q5
Main Grid
Main Grid
Solution
F
2008 Paper 1
Q6
Main Grid
Main Grid
Solution
F
2008 Paper 1
Q7
Main Grid
Main Grid
Solution
F
2008 Paper 1
Q8
Main Grid
Main Grid
Solution
F
2008 Paper 1
Q9
Main Grid
Main Grid
Solution
F
2008 Paper 1
Q10
Main Grid
Main Grid
Solution
F
2008 Paper 1
Q11
Main Grid
Main Grid
Solution
F
2008 Paper 1
Q12
Main Grid
Main Grid
Solution
F
2008 Paper 1
Q13
Main Grid
•2008 Paper 2
Main Grid
Solution
F
2008 Paper 2
Q1
Main Grid
Slide 3Main Grid
Solution
F
2008 Paper 2
Q2
Main Grid
Main Grid
Solution
F
2008 Paper 2
Q3
Main Grid
Main Grid
Solution
F
2008 Paper 2
Q4
Main Grid
Slide 3Main Grid
Solution
F
2008 Paper 2
Q5
Main Grid
Main Grid
Solution
F
2008 Paper 2
Q6
Main Grid
Main Grid
Solution
F
2008 Paper 2
Q7
Main Grid
Main Grid
Solution
F
2008 Paper 2
Q8
Main Grid
Main Grid
Solution
F
2008 Paper 2
Q9
Main Grid
Main Grid
Solution
F
2008 Paper 2
Q10
Main Grid
Main Grid
Solution
F
2008 Paper 2
Q11
Main Grid
Main Grid
Solution
F
2008 Paper 2
Q12
Main Grid
•2009 Paper 1
F Main Grid
Solution
Q1
Main Grid
F Main Grid
Solution
Q2
Main Grid
F Main Grid
Solution
Q3
Main Grid
F Main Grid
Solution
Q4(a),(b)
Main Grid
F Main Grid
Solution
Q4(c)
Main Grid
F Main Grid
Solution
Q5
Main Grid
F Main Grid
Solution
Q6
Main Grid
F Slide 3Main Grid
Solution
Q7
Main Grid
F Main Grid
Solution
Q8
Main Grid
F Slide 3Main Grid
Solution
Q9
Main Grid
F Main Grid
Solution
Q10
Main Grid
F Main Grid
Solution
Q11
Main Grid
F Main Grid
Solution
Q1
Main Grid
F Main Grid
Solution
Q8
Slide 3Main Grid
F Main Grid
Solution
Q11
Main Grid
F Main Grid
Solution
F Main Grid
Q4
F Main Grid
Solution
F Main Grid
Q2
F Main Grid
Solution
F Main Grid
Q9
F Main Grid
Solution
F Main Grid
Q12
F Main Grid
Solution
F Main Grid
Q3
F Main Grid
Solution
F Main Grid
Q10
F Main Grid
Solution
F Main Grid
Q7
F Main Grid
Solution
Q 5
Main Grid
F Main Grid
Solution
Q6
Main Grid
• 2010 Paper 1
F Main Grid
Solution
2010 Paper 1
Q1
Main GridPrevious slide
2010 Paper 1
F Main Grid
Solution
2010 Paper 1
Q 2
Main GridPrevious slide
2010 Paper 1
F Main Grid
Solution
2010 Paper 1
Q 3
Main GridPrevious slide
2010 Paper 1
F Main Grid
Solution
2010 Paper 1
Q4
Main GridPrevious slide
2010 Paper 1
F Main Grid
Solution
2010 Paper 1
Q 5
Main GridPrevious slide
2010 Paper 12010 Paper 1
F Main Grid
Solution
2010 Paper 1
Q 6
Main GridPrevious slide
2010 Paper 1
F Main Grid
Solution
2010 Paper 1
Q 7
Main GridPrevious slide
2010 Paper 1
F Main Grid
Solution
2010 Paper 1
Q 8
Main GridPrevious slide
2010 Paper 1
F Main Grid
Solution
2010 Paper 1
Q 9
Main GridPrevious slide
2010 Paper 1
F Main Grid
Solution
2010 Paper 1
Q 10
Main GridPrevious slide
2010 Paper 1
F Main Grid
Solution
2010 Paper 1
Q11
Main GridPrevious slide
2010 Paper 1
F Main Grid
Solution
2010 Paper 2
Q 1
Main GridPrevious slide
2010 Paper 2
F Main Grid
Solution
2010 Paper 2
Q 2
Main GridPrevious slide
2010 Paper 2
F Main Grid
Solution
Q 3
Main GridPrevious slide
2010 Paper 2
F Main Grid
Solution
2010 Paper 2
Q 4
Main GridPrevious slide
2010 Paper 2
F Main Grid
Solution
2010 Paper 2
Main GridPrevious slide
2010 Paper 2
F Main Grid
Solution
2010 Paper 2
Main GridPrevious slide
2010 Paper 2
F Main Grid
Solution
2010 Paper 2
Main GridPrevious slide
2010 Paper 2
F Main Grid
Solution
2010 Paper 2
Main GridPrevious slide
2010 Paper 2
F Main Grid
Solution
2010 Paper 2
Q 8
Main GridPrevious slide
2010 Paper 2
F Main Grid
Solution
2010 Paper 2
Q 9
Main GridPrevious slide
2010 Paper 2
F Main Grid
Solution
2010 Paper 2
Q10
Main GridPrevious slide
2010 Paper 2
F Main Grid
Solution
2010 Paper 2
Q12
Main GridPrevious slide
2010 Paper 2
F Main Grid
Solution
2010 Paper 2
Q13
Main GridPrevious slide
2010 Paper 2
F Main Grid
Solution
2011 Paper 1
Q13
Main GridPrevious slide
2011 Paper 1
F Main Grid
Solution
2011 Paper 1
Main GridPrevious slide
2011 Paper 1
F Main Grid
Solution
2011 Paper 1
Main GridPrevious slide
2011 Paper 1
F Main Grid
Solution
2011 Paper 1
Main GridPrevious slide
2011 Paper 1
F Main Grid
Solution
2011 Paper 1
Main GridPrevious slide
2011 Paper 1
F Main Grid
Solution
2011 Paper 1
Main GridPrevious slide
2011 Paper 1
F Main Grid
Solution
2011 Paper 1
Main GridPrevious slide
2011 Paper 1
F Main Grid
Solution
2011 Paper 1
Main GridPrevious slide
2011 Paper 1
F Main Grid
Solution
2011 Paper 1
Main GridPrevious slide
2011 Paper 1
F Main Grid
Solution
2011 Paper 1
Main GridPrevious slide
2011 Paper 1
F Main Grid
Solution
2011 Paper 1
Main GridPrevious slide
2011 Paper 1
F Main Grid
Solution
2011 Paper 1
Main GridPrevious slide
2011 Paper 1
F Main Grid
Solution
2011 Paper 2
Main GridPrevious slide
2011 Paper 2
F Main Grid
Solution
2011 Paper 2
Main GridPrevious slide
2011 Paper 2
F Main Grid
Solution
2011 Paper 2
Main GridPrevious slide
2011 Paper 2
F Main Grid
Solution
2011 Paper 2
Main GridPrevious slide
2011 Paper 2
F Main Grid
Solution
2011 Paper 2
Main GridPrevious slide
2011 Paper 2
F Main Grid
Solution
2011 Paper 2
Main GridPrevious slide
2011 Paper 2
F Main Grid
Solution
2011 Paper 2
Main GridPrevious slide
2011 Paper 2
(b)
F Main Grid
Solution
2011 Paper 2
Main GridPrevious slide
2011 Paper 2
F Main Grid
Solution
2011 Paper 2
Main GridPrevious slide
2011 Paper 2
F Main Grid
Solution
2011 Paper 2
Main GridPrevious slide
2011 Paper 2
F Main Grid
Solution
2011 Paper 2
Main GridPrevious slide
2011 Paper 2
F Main Grid
Solution
2011 Paper 2
Main GridPrevious slide
2011 Paper 2
F Main Grid
Solution
2011 Paper 2
Main GridPrevious slide
2011 Paper 2
