Edexcel GCSE Mathematics A Higher Paper 2016 Unofficial Markscheme

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    Is there and foundation mark scheme?
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    What would 70/100 be?
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    For the circle theorem question I assumed the angle given was the alternate angle to the triangle and used that for calculating the other angles and gave correct reasons e.g base angles in isosceles are equal, angles in a triangle, tangents hit radii 90 degrees etc. How many marks would I get? Thanks

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    (Original post by PolarisVega)
    What would 70/100 be?
    Pushing an A, high B.
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    (Original post by PolarisVega)
    What would 70/100 be?
    Definitely an A
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    Guys can someone please clarify whether I will lose marks if my method was all over the page, but had everything I needed to have?
    Thanks
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    How many marks would you need to get for a safe C grade?
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    (Original post by frank-wills)
    How many marks would you need to get for a safe C grade?
    I'm aiming for a C aswell (not that I'll get it😂😂)
    I think to be completely safe 70 overall (with both papers combined)
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    (Original post by frank-wills)
    How many marks would you need to get for a safe C grade?
    Overall for 2015, out of 200, it was 65. This might change depending on how people did across the country.
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    (Original post by Thorntonali)
    I'm aiming for a C aswell (not that I'll get it😂😂)
    I think to be completely safe 70 overall (with both papers combined)
    I've completely failed as well, mind went blank in the exam. So frustrated 😩
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    (Original post by SmithAmelia)
    Overall for 2015, out of 200, it was 65. This might change depending on how people did across the country.
    hopefully not many have done great hahaha I'm wishing for low grade boundaries
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    (Original post by frank-wills)
    hopefully not many have done great hahaha I'm wishing for low grade boundaries
    Just try and do really well on Paper 2, and you'll be fine.
    Good Luck
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    (Original post by frank-wills)
    I've completely failed as well, mind went blank in the exam. So frustrated 😩
    Aww, I can promise you'll have done better than me👍👍 from the unofficial mark scheme I have 35 marks (hopefully if that :'D) so I need a blessing to get that on the calculator paper to average it which just isn't happening
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    **** man! I wrote 75TT because i took away 25 from 100 to get 75, **** **** ****, i didn't even attempt the circle theorem question or the surds question!!!! Oh god why me?!! Will I still get marks for the method even though i wrote 75TT?
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    (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)

    Answer is 60.




    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)
    Answer is 36%.




    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°

    Answer is 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

    Answer is 0.04.




    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





    Worked solutions: http://mrkibria.weebly.com/uploads/7..._mr_kibria.pdf
    BTW Question2b is incorrect as the correct diagram should 1 unit shifted down
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    (Original post by bladesdontdie)
    Thanks for the quick reply!
    No need for the sarcasm, I barely use TSR. Apologies for replying late :confused:
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    someone send me link to mr kibria worked solution
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    (Original post by soph.browne)
    I got 1cm for the last question oh well
    Also I thought the circle theorem question was an alternate angle question?

    I think the envelope question was T= 5x + 20y but I have no idea why it was 3 marks
    I got that but Idt it's right oh well
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    (Original post by Omz123)
    someone send me link to mr kibria worked solution
    http://mrkibria.weebly.com/uploads/7..._mr_kibria.pdf
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    Has the foundation unofficial markscheme been completed yet??
 
 
 
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