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# Maths Edexcel GCSE Higher Paper 3 12th June 2018 Unofficial Markscheme watch

• View Poll Results: How well do you think you did?
0-10
39
2.83%
11-20
57
4.14%
21-30
95
6.89%
31-40
177
12.84%
41-50
248
18.00%
51-60
267
19.38%
61-70
268
19.45%
71-80
227
16.47%

1. Post all your answers here for the 12th June Edexcel Maths Paper 2018

1. a) negative
b) against trend
b) likely
2. 9p+13
3. triangle drawn with area 18cm^2
4. a) probabilities on first throw are wrong (don't add to 1)
b) probability should be flipped on second throw (0.65 not 0.35)
5. a) 50.5 degrees
b) decreases
6. a) 8
b) total divisible by 2
7. 3.8
8. 140 degrees
9. a) 4.52x10^3
b) denominator increases therefore total decreases
10. 10 times
11. £150,000
12. a) 1.5
b) how much volume increases a second
c) volume started at 4 litres
13. 6.50
14. 240 matches
15. a) 497.5m
b) underestimate
16. a) 42
b) n^2-n
17. 13.1
18. a) 7 is between outcomes x=1 and x=2
b) rearrange
c) 1.74
19. 5/3
20. 6/60*5/59
21. a) proof shown by SAS or RHS
b) proof shown

My Predicted Grade Boundaries (this paper only):
9 - 68/80
8 - 59/80
7 - 49/80
6 - 39/80
5 - 29/80
4- 19/80

Markscheme thanks to Harry_Spencer

For the 4 strips of equal width I got 497.5m

For iteration I got like 1.7.....

For the lights flashing? I think it was?: It flashed 10 times a minute

For the Pentagon I got 140 degrees
4. I've got
0.012 for the probability of speaking spanish question , what about you?
5. I thought it was okay. What do you think the grade boundaries are going to be like? Bigger or smaller than last years one which was 190??
6. (Original post by Phoebeolo)
I thought it was okay. What do you think the grade boundaries are going to be like? Bigger or smaller than last years one which was 190??
Thats what im worried about too.
Most people in my class found it okay, i think the boundaries will go up because compared to last years papers i think this year’s was easier to an extent.

I’m just gonna assume the worst so when i get my results i dont get suprised
7. Was it 5 for the lightbulb?
8. (Original post by Jos371371)
I've got
0.012 for the probability of speaking spanish question , what about you?
I got 6/2450
9. (Original post by S0PHIESB)
Was it 5 for the lightbulb?
10
10. I got 3/245 for the Spanish speaking question
11. 11 for the lightbulb, it flash once at the start
12. (Original post by joshogden)
I got 3/245 for the Spanish speaking question
Will u rmb the question cause I wanna redo it to make sure now
13. (Original post by the1nOnlyy)

For the 4 strips of equal width I got 497.5m

For iteration I got like 1.7.....

For the lights flashing? I think it was?: It flashed 10 times a minute

For the Pentagon I got 140 degrees
for iteration did we have to round to 1.7 because it said estimate
14. I got 10 for flashlight, 150000 for the house, 1,74 for iteration, 140 for polygon, 13.1cm for the length of a side, 3/245 for Spanish (6/50*5/49)
15. (Original post by Billy Roberts 29)
Very easy exam no hard questions your all retards
*you’re. If you’re going to mock people for their stupidity, at least learn basic English first.
16. 8 counters for red
140 for pentagon
17. 3/25 for the probability question ?
18. (Original post by JakeB57)
11 for the lightbulb, it flash once at the start
no bc it asked how many times would it flash in 1hr
19. Underestimate
20. No it wasnt 10 it was 5

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Updated: June 18, 2018
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