# November 2009 AQA maths mark scheme

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Version : 1.0: 11.09
abc
General Certificate of Secondary Education
Mathematics 4307
Specification B
Module 1 Tier H 43051H
Mark Scheme
2009 examination - November series

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Mark schemes are prepared by the Principal Examiner and considered, together with the
relevant questions, by a panel of subject teachers. This mark scheme includes any
amendments made at the standardisation meeting attended by all examiners and is the scheme
which was used by them in this examination. The standardisation meeting ensures that the
mark scheme covers the candidates' responses to questions and that every examiner
understands and applies it in the same correct way.…read more

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Mathematics B, 43051H - AQA GCSE Mark Scheme 2009 November series
The following abbreviations are used on the mark scheme:
M Method marks awarded for a correct method.
A Accuracy marks awarded when following on from a correct method.
It is not necessary always to see the method. This can be implied.
B Marks awarded independent of method.
M dep A method mark which is dependent on a previous method mark being
awarded.

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Mathematics B, 43051H - AQA GCSE Mark Scheme 2009 November series
MODULE 1 HIGHER TIER 43051H
Note: Probability - Accept fraction, decimal or percentage. Do not accept ratio.…read more

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Mathematics B, 43051H - AQA GCSE Mark Scheme 2009 November series
1430
5(a) × 100 or 1430 ÷ 60 M1 23.8 seen implies M1
6000
24 A1 Accept 23 with working
Calculating each
Alternative item separately:
5(b) 1192 + 1285 + 960 + 758
× 100 methods 19.8, 21.4, 16
6000

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Mathematics B, 43051H - AQA GCSE Mark Scheme 2009 November series
10(a) 20 × 1.2 or 20 × 0.9 or 24 or two 12's or two 9's in correct
M1
or 18 blocks on graph
(20 × 1.2) + (10 × 4.4) +
oe
(10 × 2.9) + (20 × 0.9) M1