Mark Scheme (Results)
November 2009

IGCSE

IGCSE Mathematics (4400)
Paper 3H Higher Tier

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November 2009 IGCSE Mathematics (4400) Mark Scheme – Paper 3H
Q

Working

1.

Answer

Mark

“x”/15 + “y”/15 or ((2x5)+(1x3))/(3x5)
2

2.

8y -5y = 3 +9
3y = 12 or 3y-12=0
4oe

3.

(a)

360 ÷ 8 (=45)
(180 – “45”) / 2

180 x 6/8 (=135)
“135”÷2

(b)

360 ÷ 30

180-30=180(n-2)/n

3

67.5

3

12

2

Notes
B1
denominators common multiple of 15 or 10/15 or 3/15 (accept (2x5)/15 or (3x1)/15)
B1 correct answer equivalent to 13/15
Total 2 marks
M1
M1
A1

correct gathering of terms
(can imply Ist M1)
Answer only or embedded answer =M0A0
Total 3 marks

M1
M1 dep
A1
M1
A1
Total 5 marks

4.

(1x3)+ (2x2)+(3x7)+(4x13)+(5x11)
“135”÷ 36
3.75

(a)
(b)

12x + 6(x + 2) oe
“a” = 57
18x + 12 =57 or 45 ÷ 18

IGCSE Mathematics (4400) Paper 3H November 2009

18x +12

2

2.5

5.

3

2

M1
must