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# Edexcel GCSE Mathematics A Higher Paper 2016 Unofficial Markscheme

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1. would i get 3 marks
i did 300/800 times by 16 to get 60
2. What happens if you get an answer all worked out... but then don't write it in the answer box in the bottom right? I did that with the 100-25PI answer and only noticed it as the invigilator was collecting in the papers. So I couldn't write it in as the time was gone. God knows why I didn't write it in... don't think I felt it was correct but it was.
3. (Original post by Rebecca-Joseph)
Hey, for the simultaneous equation question you know how there were two equations and for the first equation, in the question above you had to find the values for it. Well I put those x values as well as the other two from what I worked out when I drew the line of the second equation. Do you think I will get 0?
Hiya Rebecca you may be in a chance of getting marks for your working, I showed my workings and no you will get 0 if your workings are invalid. BTW best of luck to your exams, and best of wishes of you achieving your A*
4. (Original post by Darwinion)
You should get full marks for that. Question asks for x values but you gave both x and y. That's extra info and you can't be penalised for that. I'm sure I gave x and y also.
Nice, thanks for the re-assurance Darwinion, good to feel more confident, ye and I agree, the examiners shouldn't be that harsh.
5. (Original post by 34908seikj)
There's lots of recourses out there, but if you're aiming for A* you should really know everything by now that could come up in the exam, imo. It just sounds like you need to just go through the paper slower, re-read over the questions etc..

http://www.mrbartonmaths.com/gcsetakeaway.htm

http://www.m4ths.com/gcse-videos-higherfoundation.html

http://www.examsolutions.net/maths-r...her/module.php

Probably best just doing past papers now though.
thanks for these but i believe that past papers make a huge difference
6. Anyone know the question for which the answers are 2 4/5 and 4/5 (Higher-tier paper)?
7. (Original post by Darwinion)
What happens if you get an answer all worked out... but then don't write it in the answer box in the bottom right? I did that with the 100-25PI answer and only noticed it as the invigilator was collecting in the papers. So I couldn't write it in as the time was gone. God knows why I didn't write it in... don't think I felt it was correct but it was.
You will only lose 1 mark, I have shown my working out, all my friends have also forgot to add that answer on the answer line. It's only a small mark lost, but hey who knows if the examiners may award you with all the marks, it has happened before, don't tell me about it! However in your case that's a good thing!
8. (Original post by Debruyne)
would i get 3 marks
i did 300/800 times by 16 to get 60
Yes because you ended up with the right answer, but that's not the method everyone else did. But regardless of that, well done!
9. (Original post by Rakstar)
Yes because you ended up with the right answer, but that's not the method everyone else did. But regardless of that, well done!
thanks for that!
feel more confident now,
good luck with your next exam
10. (Original post by MathsMaxMapsMats)
Anyone know the question for which the answers are 2 4/5 and 4/5 (Higher-tier paper)?
Check this link, it's the question about working out with mixed fractions.
11. (Original post by Rakstar)
Check this link, it's the question about working out with mixed fractions.
Also for Q11 I didnt use the two way table method,
but my answer was 11
so would i still get 4 marks/4
12. (Original post by Debruyne)
Also for Q11 I didnt use the two way table method,
but my answer was 11
so would i still get 4 marks/4
Ye, there's alternative methods of working this one. Very worded but yeah you have got the correct outcome so yeah you would get full marks. Thank you, and good luck for your exams, and I am glad I have made your day!! Please ask me if you need anything.
13. (Original post by Rakstar)
Ye, there's alternative methods of working this one. Very worded but yeah you have got the correct outcome so yeah you would get full marks. Thank you, and good luck for your exams, and I am glad I have made your day!! Please ask me if you need anything.
No Thank you,
14. (Original post by Debruyne)
No Thank you,
No, thank you
15. (Original post by Debruyne)
who misses the stem and leaf
I do cant believe it came up
16. (Original post by Asha Malik)
I do cant believe it came up
Same,
would it come in the calculator paper?
17. (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.

Rotate at (0, 1)

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) (1 mark)

10-5m

Factorise n2 - 7n (2 marks)

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.
Answer is 90 teachers.

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)

Answer is (-3, -2)

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

Answer is 11 females.

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

Isn't that rotation wrong? It said 90 degrees anticlockwise around the point (0,1) so the coordinates for each vertex would be:
(-1,3)
(-2,5)
(-6,5)
(-5,3)
18. (Original post by Debruyne)
would i get 3 marks
i did 300/800 times by 16 to get 60
what question is this the answer for???
19. the rotation answer is wrong
20. (Original post by Asha Malik)
what question is this the answer for???
question 8 (spinner)

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