Mark Scheme (Results) - Pearson qualifications | Edexcel ...
嚜燐ark Scheme (Results)
Summer 2018
Pearson Edexcel International GCSE
In Mathematics A (4MA1) Paper 2H
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Summer 2018
Publications Code 4MA1_2H_1806_MS
All the material in this publication is copyright
? Pearson Education Ltd 2018
General Marking Guidance
?
All
candidates
must
receive
the
same
treatment. Examiners must mark the first candidate in
exactly the same way as they mark the last.
?
Mark schemes should be applied positively.
Candidates must be rewarded for what they have shown
they can do rather than penalised for omissions.
?
Examiners should mark according to the mark
scheme not according to their perception of where the
grade boundaries may lie.
?
There is no ceiling on achievement. All marks on
the mark scheme should be used appropriately.
?
All the marks on the mark scheme are designed to be
awarded. Examiners should always award full marks if
deserved, i.e. if the answer matches the mark
scheme. Examiners should also be prepared to award
zero marks if the candidate*s response is not worthy of
credit according to the mark scheme.
?
Where some judgement is required, mark schemes
will provide the principles by which marks will be awarded
and exemplification may be limited.
?
When examiners are in doubt regarding the
application of the mark scheme to a candidate*s response,
the team leader must be consulted.
?
Crossed out work should be marked UNLESS the candidate
has replaced it with an alternative response
International GCSE Maths A June 2018 每 Paper 2H Mark scheme
Apart from Questions 4, 9, 15, 16, 21(a) 21(b) and 22, where the mark scheme states otherwise, the correct answer, unless clearly
obtained by an incorrect method, should be taken to imply a correct method.
Question
Working
Answer
Mark
Notes
1
(a)
ac ? M ? bd
or 每ac = ?M 每 bd or
2
M
bd
?a?
c
c
a?
(b)
5x?39 ? 4
M ? bd
c
x?8
(c)
eg
6e (3 f ? 2ef ) , eg 2 f (9e f ? 6e )
eg
ef (18ef 2 ? 12e2 )
2
3
A1
2
oe
2
2
2
6e2 f (3 f 2 ? 2e)
M1
A1
3
5
3
M1
M1
For a correct first stage
oe, eg
a?
M bd
?
c
c
,
a?
? M ? bd
?c
[must have been seen with a = to
award accuracy mark]
Accept as equation or with the
wrong inequality sign. Also award
M1 for an answer of 8.6 or 8.6 with
an = sign or the incorrect inequality
sign.
Accept
x?
43
5
or
x ? 8.6 or
[?﹢, 8.6)
Any correct partially factorised
expression with at least 2 terms in
the common factor or for the correct
common factor and a 2 term
expression inside the brackets with
just one error
A1
Total 6 marks
Question
2
Working
3450
2?6?7
(=230) or
Answer
2
? 3450(? 460)
2?6?7
7
? 3450(? 1610)
2?6?7
or
7?2
2?6?7
Mark
3
or
M1
? 1?
?? ?
? 3?
(7 每 2) ℅ ※230§ or 7 ℅ ※230§ 每 2 ℅ ※230§ or
※1610§ 每 ※460§ or
Notes
M1
1
" "?3450
3
1150
A1
Total 3 marks
3
8
100
4
? 20000 (=1600)
20000 ?
8
100
8
100
"21600"?19200
19200
Award M2 for
20000?1.08 or
21600
M1
? 20000 (=21600) or
(20 000 每 19200) +
M1oe
? 20000 (=2400)
(?100) or
M1
"2400"
(?100)
19200
or for 1.125 or
9
8
or 112.5%
or ※21600§ ‾ 19200 (℅100) oe
12.5
A1
oe
Total 4 marks
................
................
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