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# Edexcel GCSE Mathematics A Higher Paper 2016 Unofficial Markscheme

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1. (Original post by 34908seikj)
I found that the area of the bigger triangle was 1/4, and that the smaller triangle was sqrt(6)/12 but my final answer was wrong. Would I get method marks?
2. (Original post by Year112016)
What was the answer for the envelope question?
I got 5x+20y=T
3. Eek I think I got somewhere between 65-72 hopefully that'll cut it for an A but I dont even know
4. I left it in the the 2 way table, would I still get the marks?
5. (Original post by jamesM22)
Ignore that question.

For last question, Do i get a mark for doing this:

ROUTE 2/2 X ROUTE 3/3 = ROUTE 6/6?
No, you might get one if you also multiplied it by the 1/2 though, To get √6/12.
6. when I come out of the exam thinking i got at least 94 and got like 50 on this mark scheme wtf..😂😭😭
7. For some questions I didn't write the answer on the dotted line however I underlined it in my working out. Will this be alright?
8. In the two way table question, I left the information in the table, would I still get all the marks??
9. (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.

Question 7(?). Point is the midpoint. Where is the other end?

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

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

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
wouldn't 100-25pi cancel to 4-1pi
10. (Original post by webb-tom2)
I found that the area of the bigger triangle was 1/4, and that the smaller triangle was sqrt(6)/12 but my final answer was wrong. Would I get method marks?
Yes it was out of 3 marks so you might get 2/3 idk
11. (Original post by 34908seikj)
I don't know, I believe it asked for the answer in it's simplest form, therefore 25(4-pi) would be the only correct answer.

aww bullocks, thx anyway x
12. Could someone draw a sketch of the circle theorem question and the info given so I can see?
13. (Original post by stressedoutt)
wouldn't 100-25pi cancel to 4-1pi
No, it would be 25(4-pi)
14. Does anyone have the marks for these questions and the grade boundaries please?
15. (Original post by Benjmartt)
I left it in the the 2 way table, would I still get the marks?
Not full marks. But you'd get marks for the working so you'll probably lose one mark on it, granted all the working is correct.

16. 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.

For this question, I thought it said how many teachers are female
So I got 54...did anyone else make the same mistake?
Also because I mentioned 90 in my working out, do you think I'll get the mark??????
17. (Original post by DonaldW)
For some questions I didn't write the answer on the dotted line however I underlined it in my working out. Will this be alright?
It depends on the examiner but they should still mark it, just make sure that it was the only underlined answer otherwise they will reject it
18. (Original post by SmartKid721)
Could someone draw a sketch of the circle theorem question and the info given so I can see?

What was the given angle? was it 48 degrees?
19. can you give the marks of each question?
20. (Original post by 34908seikj)
What was the given angle? was it 48 degrees?
48 degrees yeah apparently

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