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Mark 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 ¨C 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 ¨Cac = ?M ¨C 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

[?¡Þ, 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 ¨C 2) ¡Á ¡°230¡± or 7 ¡Á ¡°230¡± ¨C 2 ¡Á ¡°230¡± or

¡°1610¡± ¨C ¡°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 ¨C 19200) +

M1oe

? 20000 (=2400)

(?100) or

M1

"2400"

(?100)

19200

or for 1.125 or

9

8

or 112.5%

or ¡°21600¡± ¡Â 19200 (¡Á100) oe

12.5

A1

oe

Total 4 marks

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