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Edexcel GCSE Mathematics A Higher Paper 2016 Unofficial Markscheme

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Original post by Omz123
Sh¡t I got 7 zeros at the end of my answer not 8


are u gonna cry?
Original post by Redcoats
So did I. I'm pretty sure that's correct.


I got only 3 minus root 6????
OMG exam was hard! Can someone tell me how many marks the questions were. I want to calculate how i did. I'm predicted an A but I feel like I got a B


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Reply 203
Original post by 34908seikj
The grade boundaries will be pretty high, it was quite an easy exam imo


Agree. Reckon the grade boundaries will be 99 for an A*, 98 for an A, 97 for a B, 96 for a C ahaha
Original post by DhillonDodhia
hahahahha unlucky mate


just kids
Reply 205
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.

Spoiler


Q?? - Estimate 892/18.9 (or something idk) (2 marks - maybe)
Round to 1sf
900/20 = 45

Q?? - Angle = 69 (4 marks [I think])

180-48-48 = 84 (angles in a triangle sum to 180 & base angles in an isosceles are equal)
84/2 = 42 (angle at the centre is twice the angle at the circumference)
(180-42)/2 = 69 (angles in a triangle sum to 180 & base angles in an isosceles are equal)
Therefore angle = 69 (alternate segment theorem)

Q?? - Angie does not have enough varnish (5 marks)

Total area = (4x10) + (2x2.5x2) = 50 metres squared
Litres required = 50/5 = 10 litres
Angie has = 3 x 2.5 = 7.5 litres
10 litres > 7.5 litres

Q?? - find shaded area of triangles in square= 25(4 - π) (5 marks)

Square = 10x10 = 100 cm squared
Circle = π x 5 squared = 25π
Shaded = 100 - 25π = 25 (4 - π)

Q25 - find the shaded area = 3 - root6/12 (3 marks)

(root2/2 x root2/2)x 1/2 = 1/2 x 1/2 = 1/4 cm squared
(root3/3 x root2/2) x 1/2/ = root6/6 x 1/2 = root6/12 cm squared
1/4 - root6/12 = 3/12 - root6/12 = 3 - root6/12

That's all I can remember for now
Reply 206
would 85% be enough for an A*??
What was the answer to the circle theorems question?
Original post by katodizzle
What was the answer to the circle theorems question?


69
Area question attached belowImageUploadedByStudent Room1464261362.835161.jpg


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Original post by 11tan
Q?? - Estimate 892/18.9 (or something idk) (2 marks - maybe)
Round to 1sf
900/20 = 45

Q?? - Angle = 69 (4 marks [I think])

180-48-48 = 84 (angles in a triangle sum to 180 & base angles in an isosceles are equal)
84/2 = 42 (angle at the centre is twice the angle at the circumference)
(180-42)/2 = 69 (angles in a triangle sum to 180 & base angles in an isosceles are equal)
Therefore angle = 69 (alternate segment theorem)

Q?? - Angie does not have enough varnish (5 marks)

Total area = (4x10) + (2x2.5x2) = 50 metres squared
Litres required = 50/5 = 10 litres
Angie has = 3 x 2.5 = 7.5 litres
10 litres > 7.5 litres

Q?? - find shaded area of triangles in square= 25(4 - π) (5 marks)

Square = 10x10 = 100 cm squared
Circle = π x 5 squared = 25π
Shaded = 100 - 25π = 25 (4 - π)

Q25 - find the shaded area = 3 - root6/12 (3 marks)

(root2/2 x root2/2)x 1/2 = 1/2 x 1/2 = 1/4 cm squared
(root3/3 x root2/2) x 1/2/ = root6/6 x 1/2 = root6/12 cm squared
1/4 - root6/12 = 3/12 - root6/12 = 3 - root6/12

That's all I can remember for now


Yeah I got all the same answers. Does anyone remember what they got for using the graph to estimate the x^2+4x-2=0 etc.
Reply 211
Original post by DhillonDodhia
are u gonna cry?


Probably...it is my GCSE math exam...
Also stop commenting anything that's not math related u scrub
someone talk about the vectors question
Original post by MrsGren
would 85% be enough for an A*??


yes
Original post by MrsGren
would 85% be enough for an A*??



No, 'twas an easy paper, probably around 92%
Reply 215
How is question 11, 36%. Please can you show the working out.
Original post by MrsGren
would 85% be enough for an A*??


Normally yeah
Original post by Omz123
Sh¡t I got 7 zeros at the end of my answer not 8


(3.5x10^6)/(5x10^-3)
3.5 / 5 = 0.7
indices rule 6--3 =9
0.7x10^9
put in standard form
7x10^8
Original post by ithinkitslily
69


Ok cool at least I got that one right
Original post by Omz123
Probably...it is my GCSE math exam...
Also stop commenting anything that's not math related u scrub




sorry m8 cant handle the banter

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