WJEC 2014 Online Exam Review
GCSE Mathematics Unit 1 4351-02
All Candidates' performance across questions
Question Title
1
2
3
4
5
6
7a
7b
8
9
10
11
12
13
N
920
906
920
918
913
914
892
908
913
908
898
891
853
820
Mean
2.7
2.6
7.5
3.9
1.7
3.7
2
1.1
2.3
4.6
1.8
1.7
2.4
0.8
SD
0.5
0.8
2.1
1.9
0.6
1.8
1.2
0.8
1.5
2.6
1.2
1.7
2.5
1.5
Max Mark
3
3
9
5
2
7
3
2
4
8
3
4
6
6
FF
89.3
87.4
83.6
77.6
84.6
52.7
67.6
57
58.1
58
58.7
41.6
40.4
14
Attempt %
100
98.5
100
99.8
99.2
99.3
97
98.7
99.2
98.7
97.6
96.8
92.7
89.1
Question
GCSE Mathematics Unit 1 4351-02
13
12
11
10
9
8
7b
7a
6
5
4
3
2
1
14
40.4
41.6
58.7
58
58.1
57
67.6
52.7
77.6
0
10
20
30
40
50
60
Facility Factor %
70
84.6
83.6
87.4
89.3
80
90
100
6a
7b
10
7
Examiner
only
(a) A company was set up with 500 workers.
At the end of each of the first three years the company employed more workers.
The number of additional workers employed each year was equal to two-fifths of the
number of workers that were there at the start of that year.
How many people worked for the company in the fourth year?
[4]
4 3 51
020 0 07
6.
© WJEC CBAC Ltd.
(4351-02)
Turn over.
9
Examiner
only
(b)
A newspaper published the following graph.
Reported crimes
500
400
2010
300
2011
200
2012
100
2013
0
Comment on how this graph could be misunderstood and give the reason for this.
© WJEC CBAC Ltd.
(4351-02)
[2]
Turn over.
7.
7.
7.
7.
12
Examiner
only
10. A building society is advertising the following savings scheme.
SUPER SAVER
Interest rate: 6% per annum
Interest is paid to you every 4 months
The building society must tell customers what the Annual Equivalent Rate (AER) is on this
savings scheme.
The formula used to calculate this AER is
(

AER =  1 + R
100N

)
N

– 1 × 100

WhereR is the percentage interest rate per annum shown in the advert,
and N is the number of interest payments you receive in one year.
Calculate the AER on this Super Saver scheme.
Give your answer correct to 2 decimal places.
© WJEC CBAC Ltd.
(4351-02)
[3]
10.