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# Edexcel GCSE Mathematics A Higher Paper 2016 Unofficial Markscheme Watch

1. I think I got around 57-58 marks what would that be roughly? and do you think that the grade boundaries will be lower because people have found this hard?
2. (Original post by Starface)
Since it didnt ask for it in its simplest form, do you guys reckon that 1/4 - root6/12 is fine for the answer to the last question as it is still an exact equivalent to 3-root6/12 ?
I put that but im not sure if it will be accepted, probably not )':.
3. Do you know the marks for Q8 and onwards?
4. (Original post by Starface)
Nah you'll lose a mark because 100-25pi isn't equivalent to 25 - 5pi. You took the correct answer and turned it into an incorrect one D:
Whoops, that's a good point. I didn't realise he didn't factor it out.
5. FFS, I calculated to get 66 marks, I had lost very EASY marks, hopefully I can still get an A.
6. (Original post by luke.brown1999)
I think I got around 57-58 marks what would that be roughly? and do you think that the grade boundaries will be lower because people have found this hard?
Solid B.
7. Anyone know what grade 74 might be?
8. (Original post by ILoveMaths69)
Can you put the value of marks for each question please?
Done that.
9. (Original post by itsdatboy)
For the first question, it was rotate clockwise 90*, I vividly remember it. However, I messed up on the reflection of x=-1 and reflected it on the other line, god dammit.
I remember it being clockwise aswell.
10. (Original post by luke.brown1999)
I think I got around 57-58 marks what would that be roughly? and do you think that the grade boundaries will be lower because people have found this hard?
They will be higher. and a grade C
11. (Original post by 34908seikj)
This is incorrect

it was (3-√6)/12
Ohh right oki
My maths teacher told me the answer afterwards maybe i just recalled it wrong sorry about thatt
12. Any guesses for the grade boundries this year?
13. (Original post by Stoasts)
Do you know the marks for Q8 and onwards?
14. (Original post by MrJamerJamer)
I remember it being clockwise aswell.
Im sure it said anticlockwise
15. (Original post by MrJamerJamer)
If I got around 70 on this paper what would I need for a "a/a*"?

A* ~ 78/100
A ~ 63/100
B ~ 48/100
C ~ 33/100
17. (Original post by tamanna___)
Im sure it said anticlockwise
Anti-clockwise by 90 degrees.
18. (Original post by tamanna___)
Im sure it said anticlockwise
It said 90 degress anticlockwise centre (0,1) i think?
19. (Original post by bethanyjx)
I think I got around 84..I was really really hoping for an A* so let's hope this next paper is promising :-)
how many marks do you think i will get for the circle theorem question for saying .... the tangent meets the cirlce at 90 degrees - that theorem and then i said it was an isoceles so the two angles are equal but then because couldn't find anymore reasons i just worked it out really quickly at the end showing all working but not giving any reasons and i put 69 degrees
20. (Original post by LogicalFallacy)
This is the completed mark scheme for the 26/05/2016 mathematics non-calculator paper.

If there are any mistakes, please tell me.

Reps would be appreciated, but are not necessary.
Spoiler:
Show
Question 1. What is the volume of the prism? (3 marks)

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

30cm² x 25cm = 750cm³

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

Attachment 538919

Accept correct reflection.

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

Accept correct rotation.

Attachment 538937

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.
P2 x P5 = P7 (1 mark)

G6 ÷ G4 = G2 (1 mark)

(K3)2 = K6 (1 mark)

Expand and simplify 3(m+4) - 2(m+1)

10-5m

Factorise n2 - 7n

n(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. 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 8. Spinner, spins 300 times. (3 marks)

Question 9. 5 envelopes in small, 20 in large. What is total? (3 marks)

T = 5x + 20y

Question 10. Point is the midpoint. Where is the other end? (2 marks)

Question 11. How many females visited the art gallery? (4 marks)
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 12. (3 marks)
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 13. What percent of his total spending is his rent now? (3 marks)

Question 14. Bisector of an angle (2 marks)
Attachment 538913

Correct perpendicular bisector of line (2 marks)
Attachment 538961

Question 15.

Compare median, interquartile range and range. (3 marks)

200 x 25% = 50
200 - 50 = 150

Last part, answer was 150. (2 marks)

Question 16. (3.5 x 106) ÷ (5 x 10-3) (2 marks)

7x108

Question 17a. Solve 3x - 5 < 16 (2 marks)

x < 7

Question 17b. Solve (11-w) ÷ 4 = 1 + w (3 marks)
w = 7 ÷ 5

Question 18.

2 4/5 (3 marks)

4/5 (3 marks)

Question 19.

x = -0.4 or x = 4.4
x = -1.1 or x = 5.1 (3 marks)
x = -1.7 or x = 4.7 (3 marks)

Question 20. What is the angle? (5 marks)
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 21. What is the chance of the match being cancelled when it does not rain? (5 marks)
Attachment 538811
0.8 x 0.05

Question 22. Solve X² = 4(X-3)² (3 marks)

X² = 4[(X - 3)(X - 3)]

X² = 4[X² - 3X - 3X+ 9]

X² = 4[X² - 6X + 9]

X² = 4X² - 24X + 36

0 = 4X² - X² - 24X + 36

0 = 3X² - 24X + 36

0 = 3[X² - 8x + 12]

0 = 3[(X - 6)(X - 2)]

X = 6 or X = 2

Question 23. (6 marks)
a + b

-a + 3b

¾(a+b)

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

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

Question 25. (3 marks)
Attachment 538759

(3-√6) ÷ 12

2(b) was rotate 180 at 0,1

Updated: May 24, 2017
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