You are Here: Home >< Maths

# Edexcel GCSE Mathematics A Higher Paper 2016 Unofficial Markscheme

1. (Original post by erodedsoul)
I got 750cm3 for the first one

Posted from TSR Mobile
What was the first question again I forgot?
2. Yes I think you're right 25(4-pi) for Q14
3. (Original post by Federerr)
I got pictures of the paper. I stole one from a empty desk lol.
Could you post them lol?
4. What was the method to find out the answer for the last question about the area of the shaded area????
5. (Original post by erodedsoul)
I got 72 for circle there on I think

Posted from TSR Mobile
Yeah so did I!
6. What if you wrote 4% instead of 0.04 for probability?
7. (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
What were questions 8,9 and 10 because they arent on here
8. [QUOTE=Azarhuntttt;65201163]
(Original post by theone97)

I'm sure the first question was worth 3 marks and the k=100 one with the table was worth 4
No, it was that is does not rain but does get cancelled, thus the answer was 0.04
9. (Original post by Ronak_306)
What was the first question again I forgot?
Find the volume of the shape and you had to do 30 X 25 or something
10. (Original post by hafsa473)
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??????

I said how many were female
11. I got 0.25 - (root6/12) for the last question, I've been though it a few times and can't see a mistake so maybe that answer is wrong? Idk I might just have done something stupid.
12. The question for the teachers was 90 (which I'm happy about because I was unsure and got 90!) but how is 2 x 18 = 90??
13. (Original post by Rebqqq)
What where last years grade boundaries overall
last years was
A* = 155/200
A = 125/200
B = 95/200
C = 65/200
D = 35/200
E = 20/200
14. Guys i lost 12-15 marks, can i still get an A*
15. can someone post a link to the actual paper so I can see it from that perspective ...
if its even possible.
16. Question 21, I answered that as 0.05..? It said the chance of it raining or not is 0.95 so I assumed 1 - 0.95 is 0.05
17. For -a +3b could you also have -3b+a
18. (Original post by polishboyy)
Guys i lost 12-15 marks, can i still get an A*
I also lost about 15 marks! From past years, 84+ is an A* guaranteed! We just need to do really well in the calculator paper to secure those A*
19. (Original post by Bernie2016)
I got 0.25 - (root6/12) for the last question, I've been though it a few times and can't see a mistake so maybe that answer is wrong? Idk I might just have done something stupid.
I got this as well and my maths teacher has said this is the right answe
20. (Original post by Bernie2016)
I got 0.25 - (root6/12) for the last question, I've been though it a few times and can't see a mistake so maybe that answer is wrong? Idk I might just have done something stupid.
Won't get full marks as it's not in the final form.

(3-√6)/12

All you had to do is combine the fractions.

## Register

Thanks for posting! You just need to create an account in order to submit the post
1. this can't be left blank
2. this can't be left blank
3. this can't be left blank

6 characters or longer with both numbers and letters is safer

4. this can't be left empty
1. Oops, you need to agree to our Ts&Cs to register

Updated: March 19, 2017
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Today on TSR

What do you wish you'd been taught?

Poll
Useful resources