International GCSE in Mathematics B - Paper 1 Quality Question And Answers.

Issue 1 – June 2016 © Pearson Education Limited 2016
Pearson Edexcel International GCSE in Mathematics (Specification B) – Sample Assessment Materials




International GCSE in Mathematics B - Paper 1 Quality
Question And Answers.
Question Working Answer Mark AO Sub-total Total
1 22.5 M1 1.1
100
60

37.5(%) A1 2
2 25 10 M1 1.1
 or 3.125  4.1
8 41
125
N.B. No working scores M0 A0 (cao)
164 A1 2
1
3 x = 1−1.25 or 2x = 41− 5 M1 1.3
2

1
−
2 A1 2
4 42 = 2 × 3 × 7 1.1
84 = 2 × 2 × 3 × 7
154 = 2 × 7 × 11
Prime factors of two of 42, 84 and 154
or
42 = 3 × 14
84 = 6 ×14
154 = 11 × 14
Two of above
or
Attempt at factor tree for two of the
numbers M1

HCF = 14 A1 2
25

, 26




Question Working Answer Mark AO Sub-total Total
5 1.3
Pearson Edexcel International GCSE in Mathematics (Specification B) – Sample Assessment Materials




–2, 1, 4 B2 2
(–1 eeoo)
6(a) 1 B1 2.6 1

6(b) 2 B1 1 2
7  3   −5 M1 2.8
OC =   +  
 −4   7 
 −2  A1 2
3
 
8 85 mm or 35 mm M1 1.1
240 A1 2.7 2
1 1 M1 3.10
9 P(1, 1) + P(1, 2) = + (oe)
6 6
1
2 , 0.333, 33.3%
Issue 1 – June 2016 © Pearson Education Limited 2016




,
6 3
A1 2
10 x + 3 + 2 3x = y + 6 2 M1 1.3
3x = 3 2
M1 (DEP)
x = 6, y = 9 A1 3
11(a) e B1 1.2 1

11(b) i, j B1 1

11(c) g, h, i, j B1 1 3