Guidance on the use of codes within this mark scheme
M1 – method mark. This mark is generally given for an appropriate method in the context of the question. This mark is given for showing your working and may be awar
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Guidance on the use of codes within this mark scheme
M1 – method mark. This mark is generally given for an appropriate method in the context of the question. This mark is given for showing your working and may be awarded even if working is incorrect.
P1 – process mark. This mark is generally given for setting up an appropriate process to find a solution in the context of the question.
A1 – accuracy mark. This mark is generally given for a correct answer following correct working.
B1 – working mark. This mark is usually given when working and the answer cannot easily be separated.
C1 – communication mark. This mark is given for explaining your answer or giving a conclusion in context supported by your working.
Some questions require all working to be shown; in such questions, no marks will be given for an answer with no working (even if it is a correct answer).
Part Working an or answer examiner might expect to see Mark Notes
(a) 2 2 3 7 M1 This mark is given for a 2, 2 3 and 7 seen
A1 This mark is given for the correct answer only
(b) 60, 120, 180, 240, 300, 360, 420 … M1 This mark is given for a method to find
84, 168, 252, 336, 420 … the LCM
or
84 = 2 2 3 7
60 = 2 × 2 × 3 × 5
LCM = 2 2 3 5 7
420 A1 This mark is given for the correct answer
only
Question 2 (Total 5 marks)
Part Working or answer an examiner might
expect to see Mark Notes
(a) M1 This mark is given for 2 and 10 correctly placed in the intersection
4
6
8
2
10
1
5 M1 This mark is given for 4, 6 and 8 placed in A only
or
3 7 9 1 and 5 placed in B only
or
3, 7 and 9 placed in (A B)
C1 This mark is given for all numbers correctly placed in the Venn diagram
(b) n(A B) = 2 M1 This mark is given for a method to identify the number of elements in A B
2 A1 This mark is given for the correct answer
10 only
Part Working or answer an examiner might expect to see Mark Notes
3000 5 = 600 P1 This mark is given for a start to the process to solve the problem
1200 : 1800 P1 This mark is given for a process to find the ratio of the number of tins in small
boxes to the number of tins in large boxes
1200 : 1800 = 200 : 90 P1 This mark is given for a process to find
6 20 the ratio of the number of small boxes to the number of large boxes
90 = 0.3103448… 31%
290 P1 This mark is given for a process to find to find the percentage of tins in large boxes
Carlo is not correct; 31% of the boxes C1 This mark is given for a valid conclusion
filled with tins are large boxes supported by correct working
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