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# Edexcel GCSE Mathematics A Higher Paper 2016 Unofficial Markscheme Watch

1. thank you yusuf90

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2. (Original post by Ella_08)
me too i think. I thought that was so generous for 3 marks
It doesnt matter if you put the T at the front so. T=5x+20y, its still the same right.
3. (Original post by hafsa473)
last years was
A* = 155/200
A = 125/200
B = 95/200
C = 65/200
D = 35/200
E = 20/200
What is this years boundaries?
4. Question 6 is wrong it was how many females play bowling
5. Guys what do you think 77/100

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6. (Original post by ThatGuy01)
Could anyone sketch the circle theorems question with a solution? Cheers
Somebody posted it a while ago ~page 20-30 lol, no idea where it is though ;/
7. Could you mention how many marks for each were?
8. 3 - root 6 all over 12
9. Is that an A or B

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10. (Original post by Zainab_5148)
Guys what do you think 77/100

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Border line A i'd say, going to be high grade boundaries.
11. Can someone maybe state how many marks each question was?
12. Does anyone know what question 18(a) was? It was one of the fraction questions, or before them, as the answer after is 2 4/5. The answer for 18(a) is 7/5, if that helps.

Cheers. x
13. (Original post by Chode118)
For -a +3b could you also have -3b+a
-a + 3b is different to -3b + a so no
14. Where can I find predictions for the calculator paper then?
15. For the simultaneous equation I got y=3.8 and x = 2.2

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16. (Original post by Rebqqq)
What would a C on both papers be?
Last year it was 65 or a C I'm pretty sure
17. For the 'why is asking his maths class bad' question i put something like ' they are not a good Representative, they are all same age.' would i get full marks if not some (1 or 2).
18. (Original post by LogicalFallacy)
Hey, if anybody is willing to contribute the answers, and preferably the questions, then I shall set up a mark scheme for you all. Thanks in advance!

Can people please attach question numbers to their answers? Method would be appreciated.

This will be updated as I go along.
Spoiler:
Show
Question 1. What is the volume of the prism? (2 marks)

Area of face = 30cm²
Length of prism = 25cm.

30cm² x 25cm = 750cm³

Question 2a. Reflect shape in line X = -1 (2 marks)

Accept correct reflection.

Question 2b. Rotate shape 90° anticlockwise. (2 marks)

Accept correct rotation.

Question 3. What is wrong with the questionnaire? Give two reasons. (2 marks)
Attachment 538813
'Too vague (i.e. not 1-2, 3-4 etc.)' and 'no time frame (i.e. not per week, per month, etc.)' are accepted.

Create a better survey for him to use. (2 marks)

Why is his maths class not a good sample? (1 mark)

'Too small' and 'may be biased' are accepted,

Question 4. Simplify. (all of question 4, 6 marks)
P2 x P5 = P7

G6 ÷ G4 = G2

(K3)2 = K6

10-5m

Factorise n2 - 7nn(n-7)

Question 5. Estimate 892 ÷ 18.9 (2 marks)
Round to 1 significant figure

900 ÷ 20 = 45

Question 6. A teacher is picked at random. 3/5 chance they are female. 36 are males. (3 marks)
How many teachers are there altogether?

2/5 of teachers are male. 36 are male.

2/5 of total = 36
2 x 18 = 36
18 x 2 = 90.
Answer is 90 teachers.

Question 7(?). Point is the midpoint. Where is the other end?
Answer is (-3, -2)

Question 10(?). Can the floor be varnished with 3 tins of 2.5 litre varnish and it is 5 m2 per litre. (5 marks)
Attachment 538829

2.5 m x 6 m = 15 m2
2.5 m x 6 m = 15cm2

10 m - (2.5 m - 2.5 m) = 5 m
6 m - 2 m = 4 m

5 m x 4 m = 20 m2

15 m2 + 15 m2 + 20 m2 = 50 m2

5 m2 per litre, 50 m2 ÷ 5 m2 = 10 litres

2.5 litres per tin, 3 tins, 3 x 2.5 = 7.5 litres.

Not enough, 7.5 litres is less than 10 litres.

Answer is 'not enough' with evidence.

Question 11(?). What percent of his total spending is his rent now?

Question 13(?). How many females visited the art gallery?
66 students went on the trip.

Males - Bowling - 4
Females - Bowling - 6
Total - Bowling - 10

Males - Art Gallery - 9
Females - Art Gallery - 11
Total - Art Gallery - 20

Males - Skating - 10
Females - Skating - 26
Total - Skating - 36

Males - Total - 23
Females - Total - 43
People - Total - 66

Answer is 11 females.

Question 14(?).
Attachment 538769
Area of square = 10cm x 10cm = 100 cm²
Area of circle = π5² = 25π cm²
Area of shaded = Area of square - Area of circle = 100 cm² - 25π cm² = 100 - 25π cm²

Question 15(?).

Compare median, interquartile range and range.

200 x 25% = 50
200 - 50 = 150

Last part, answer was 150.

Question 16(?). (3.5 x 106) ÷ (5 x 10-3)

7x108

Question 17(?).

x = -0.4 or x = 4.4
x = -1.1 or x = 5.1
x = -1.7 or x = 4.7

Question 18(?).
7/5

2 4/5

4/5

Question 19(?).
x < 7

Question 20(?). Solve X² = 4(X-3)²
X² = 4[(X - 3)(X - 3)]
X² = 4[X² - 3X - 3X+ 9]
X² = 4[X² - 6X + 9]

X² = 4X² - 24X + 360 = 4X² - X² - 24X + 360 = 3X² - 24X + 360 = 3[X² - 8x + 12]0 = 3[(X - 6)(X - 2)]

X = 6 or X = +-2

Question 21(?). What is the chance of the match being cancelled when it does not rain?
Attachment 538811
0.8 x 0.05

Question 22(?). What is the angle?

Angles in a triangle add up to 180°, base angles in an isosceles are equal.
180° - 48° - 48° = 84°

Angle at centre is twice angle at circumference.
84° ÷ 2 = 42°

Angles in a triangle add up to 180°, base angles in an isosceles are equal.
(180° - 42°) ÷ 2 = 69°

Question 23(?).
a + b

-a + 3b

¾(a+b)

Point S is on both lines and is the point at which the lines intersect.

Question 24(?).
Table - 100, 25, 4

Question 25.
Attachment 538759

(3-√6) ÷ 12
Am I right in saying that questions 8,9 and 12 are missing from this mark scheme?
19. If the grade boundaries are REALLY high what would 77/100 be?

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20. Guys for the second vector question which said -a+3b i factorised it because the question said simplify, i wrote 1/3 (-3a+3b) do i still get full marks????

Updated: May 24, 2017
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