Edexcel GCSE Mathematics A Higher Paper 2016 Unofficial Markscheme

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    (Original post by Itsmatthew1998)
    Does anyone know the answer to the varnish questions
    She didn't have enough, she had 7.5l but needed 10l to cover the floor which was 50m^2
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    (Original post by whitedynamite)
    No.

    3/5 are female.
    That means 2/5 must be male.
    There are 36 male. Therefore the total number of teachers = 36/(2/5).
    This is the same as 36*(5/2), which is 180/2 which is 90.
    Yes, I was just going to the numbers that were given in the original post.
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    (Original post by Giovanni_)
    Yeah I ended up trying to use Pythagoras too xD
    haha glad I wasn't the only one :P I just saw it was a right angled triangle so was like ik I'll find the side using pythagoras !
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    (Original post by 34908seikj)
    40% = 36

    Therefore 100% = 36/40 * 100 = 90 people total

    people who got 60 are wrong.
    No 3/5 are female
    36 are male

    So 36/2*5= 90
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    (Original post by alchima)
    It was a 5 mark question I think. I made that mistake too but when I checked, I changed my answer to the right one.
    I made a stupid mistake on that one too but I reckon I can still get some marks for method
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    I think The envelops question (3 marks) was:
    T=5x+20y
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    (Original post by Jesnazzy)
    I think it was:
    there are 3/5 male teachers
    there are 36 males
    How many teachers are there altogether.

    So firstly you say 2/5 female teachers... i don't wanna go any further because i got 60 as my final answer whilst others got 90!
    yeah basically you work out 1/5 of the teachers which was 18 and then you times it by five to get 90
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    (Original post by alchima)
    It was a 5 mark question I think. I made that mistake too but when I checked, I changed my answer to the right one.
    Ah thats annoing, would I still get a mark for saying she doesnt have enough??
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    probability question and the question of 1/x2 inverse proportion
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    (Original post by coreHelp)
    my friends got 75 pie but i had 4- pie so who is right?
    75pi is incorrect.

    4-pi is incorrect unless you're multiplying the whole thing by 25.

    The answers are 100-25pi, or that simplified to 25(4-pi).
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    (Original post by cdaniels2011)
    Thanks for this.
    I ****ed up
    Il **** you up
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    Also The answer for the question X^2 = 4(x-3)^2 was
    x=6 or x=2
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    What was the answer for the two way table?
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    What did everyone get for x^2=(x+3)^2? (or something similar)
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    (Original post by Urbz)
    would it still be right if you said 4%.
    I suppose so yeah as it's the same probability
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    (Original post by pinkgrapefruitj)
    Ah thats annoing, would I still get a mark for saying she doesnt have enough??
    yeh
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    (Original post by pinkgrapefruitj)
    Ah thats annoing, would I still get a mark for saying she doesnt have enough??
    Yeah I think you would get the communication mark. You probably would get a method mark too but you wouldn't get the accuracy mark. That's how they mark it.
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    (Original post by ErinDearlove00)
    What did everyone get for x^2=(x+3)^2? (or something similar)
    2 and 6
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    (Original post by Itsmatthew1998)
    Does anyone know the answer to the varnish question.
    It was She cannot cover the floor completely
    Because the floor was 50 m^2 and she had varnish for 35.25m^2
    She had 3 pots of 2.5litres each so 7.5 litres in total
    Every litre could cover 5m^2 of floor
    7.5x5= 35.25m^2
    And her floor was 50m^2
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    (Original post by Lakshii)
    how many marks was the last question ?
    Was it 3 possibly?
 
 
 
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