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Edexcel Maths GCSE Paper 1 Foundation 24 May 2018 Unofficial Markscheme

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Original post by Bento3456
The holiday was 400 something definitely


I think i put 485.
There was a question with a circle with a line touching the edge. Answer was Tangent.

The meat one was find out how much 2kg cost.
Answer was (£54/5000)x2000 = £21.60

The sweet one was (5000kg/250g)x65p = £13.00
She spent £10 and got £13.00 back making £3 profit.
The percentage profit was 30%

Who saved the most money from their salary was Isabel with 30% saved

The graph should have been a negative gradient from top left to bottom right going through (1,1)

There was a ratio question that was 1:3
Reply 262
Avatar for Jo2007
Jo2007
9
Original post by SamB189
I think i put 485.

Holiday one was £535
Original post by tkusheva
correct and how many marks was it?


1 = 6000 1 mark
2a = -6, -5, 0, 6, 12 1 mark
2b = 0.078, 0.708, 0.78, 0.87 1 mark
3 = 20/100 1 mark
4 = 3/9 1 mark
5 = 14 1 mark
6a = 12t 1 mark
6b = 3a 1 mark
7a = D 1 mark
7b = A 1 mark
7c = 8/12 = 2/3 3 marks
8 = 36 2 marks
9a = Radius 1 mark
9b = Tangent 1 mark
10 = £535 3 marks
11a = 15 is a factor of 30 and 25 a factor of 50 1 mark
11b = 21 has an even digit in it 1 mark
12a = 100 1 mark
12b = 670 3 marks
12c = Tablets increased from 60 in 2015 to 340 in 2017 2 marks
12d = Can't say as no cost or profit info provided 1 mark
13 = 3 (I have written down 3 x 40 for some reason?)3 marks
14 = Isabel saves 30% 4 marks
15 = 24g 2 marks
16a = P=14 2 marks
16b = 4e2 + 8e 2 marks
16c = M=11 2 marks
17 = 1:3 2 marks
18a = 15, 17, 19, 20, 21, 23, 25 2 marks
18b = All odd numbers 1 mark
19a = 3 11/28 2 marks
19b = 1 3/5 2 marks
20 = 140 houses 3 marks
21 = 30% 4 marks
22a = 25 days 3 marks
22b = Reduce time 1 mark
23a = 96cm2 4 marks
23b = Draw pyramid 6 wide 4 high 2 marks
24 = 16, 14.5 5 marks
25 = 3 marks
x = -3 -2 -1 0 1 2 3
y = -7 -6 -5 -4 -3 -2 -1

26 = (9) 2 marks
(11)
Original post by Abdurrahman123
I got 20 aswell as it was estimated , wasn't it ?


Yeahh.. I cant remember if I put 20 or 25
Reply 265
Avatar for ST7
ST7
3
Original post by Xienamy
Did we have to times the vector by 2 for a?


Yes...! Multiply the first vector by 2 = 2a and then add both.
Original post by Jo2007
Holiday one was £535


I hope i put that then. I really can’t rememebr what i put and its been annoying me since yesterday. Such a simple question to lose marks on if i did get it wrong.
Original post by Emmz93
i wrote radius then crossed it out and changed it to diameter agghhh xD


saaaaaaaaaaaaaaadd HAHAH
Seeing a lot of “25 days” for the bike riding question!
I can confirm this is not correct, if anybody checks the Edexcel spec it states when estimating they want you to round to ONE significant figure!!
The miles rounded to the first significant figure is evidently 3000.. but people are making mistakes concerning miles per hour! We was given the value of 15 point something.. the first significant figure is 1 but the decider next to it is five so it gets rounded UP to 20!
If you done the equation with 15 instead of 20 and got 25 then it is wrong check the spec!! Xx
Reply 269
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Cy88
2
Original post by Luna2000
I also got 140 for the house question


I got 140 as well
Original post by Chelsjmelaisi
Seeing a lot of “25 days” for the bike riding question!
I can confirm this is not correct, if anybody checks the Edexcel spec it states when estimating they want you to round to ONE significant figure!!
The miles rounded to the first significant figure is evidently 3000.. but people are making mistakes concerning miles per hour! We was given the value of 15 point something.. the first significant figure is 1 but the decider next to it is five so it gets rounded UP to 20!
If you done the equation with 15 instead of 20 and got 25 then it is wrong check the spec!! Xx


So what was the answer please?
Original post by Mwana123
So what was the answer please?


You’re supposed to divide the overall miles by the average speed using the speed/distance/time formula!! You’ll get that it would have taken him 150 hours to complete 3000 miles on average. You then have to divide the 150 hours into 8’s as he’s planning on doing 8 hours per day. The answer isn’t an integer, it’s like 18 point something if I remember but since they’re asking for days I’d expect they’d want you to round it off to a whole day at 19. Furthermore, since it is an estimation you’d probably have leeway of 18-21!!
It’s so easy to forget that when you’re estimating you should round to 1s.f! Also don’t worry remember only one mark goes to the “accurate” answer, if you’ve done the correct steps but got a different answer they can and probably will still award method marks my love x
Reply 272
Avatar for Jo2007
Jo2007
9
Original post by Chelsjmelaisi
You’re supposed to divide the overall miles by the average speed using the speed/distance/time formula!! You’ll get that it would have taken him 150 hours to complete 3000 miles on average. You then have to divide the 150 hours into 8’s as he’s planning on doing 8 hours per day. The answer isn’t an integer, it’s like 18 point something if I remember but since they’re asking for days I’d expect they’d want you to round it off to a whole day at 19. Furthermore, since it is an estimation you’d probably have leeway of 18-21!!
It’s so easy to forget that when you’re estimating you should round to 1s.f! Also don’t worry remember only one mark goes to the “accurate” answer, if you’ve done the correct steps but got a different answer they can and probably will still award method marks my love x


I have that one wrong then. I started working it out and then came back to it but was running out of time so I worked part of it out and then guessed the answer. Think I said 28 😂
Original post by Jo2007
I have that one wrong then. I started working it out and then came back to it but was running out of time so I worked part of it out and then guessed the answer. Think I said 28 😂


Honestly hun the amount of “25” values I’ve seen I doubt it’s gonna be a popular one to score high on!!
If you have the correct working you may grab the 2 marks for your method, even if the values inputted are wrong!
Good luck with your next two aswell! X
Original post by FernD234
How did everyone find that paper? I thought the first half was okay but the last few pages were slightly grim & some rather odd questions throughout

I thought the exact same
Original post by saleemh
But they told you there was 50 bungalows so that means each one was 10 so to get flats you times 7 by 10


Think you’re a bit confused
For the sweet one I put 3% profit instead of 30% :'(
i bet i failed :frown:
Reply 277
Avatar for hka166
hka166
4
Original post by Jreszke
For the sweet one I put 3% profit instead of 30% :'(
i bet i failed :frown:


Dont worry! Im sure u havent, u will get marks for your working out too
I think I got around about 22-30 marks on paper 1 need to do more good other two papers
Original post by Bento3456
The holiday was 400 something definitely


No it wasn’t. It was 500 and something? Teachers went through it with us

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