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    OH MY GOD!! i just realised i may have got question 1c wrong lol. I think i may have forgotten to multiply by 5 :eek: Any guess to how many marks would lose for that? and how many marks lost for getting 324 instead of 648? Those are the only marks i lost so there is hope for 100!
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    hey Arsey thanks for the solutions your answers match mine =)
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    (Original post by keeranj)
    does anyonr remember question 7 , 8
    As far as I can remeber, 7 is 648 and 8 is 4p(root(3)-1) or smth like that=D
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    how do you actually view the c4 mark scheme??
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    hey there, just wondering, anyone have a guess at how many potential marks lost from the following:

    1) forgot to multiply by 5

    Vector question: Last bit, I did the wrong perpendicualar bisector(I did the right angle opposite)
    Q7) I produced the correct integral, but when Expanding out I forgot to multiply one of the terms by 10, so as a result one one of expressions was correct the 30t^3, Is What I obtained for one part, but then got the next part wrong, (although I carried on and multiplied by 2)

    For question 8( I cannot rememeber what my answer was, although I do remember getting Sqrt3-1

    something along those lines!

    thank you, any chance of getting 90%, i hear 71 raw marks usually equates to 100ums, how about 65 raw marks?
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    (Original post by Tangoed)
    Does anyone know when abouts the results will be released? I have no idea cos i took the paper as an external candidate...:confused:
    hey, how do you view the answers for the c4 25th january 2010???????
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    (Original post by bigbosss)
    hey Arsey thanks for the solutions your answers match mine =)
    well I hope not as I made a stupid mistake on the last one
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    (Original post by WillHJ)
    hey, how do you view the answers for the c4 25th january 2010???????
    I posted the solutions on page 9? go back a couple of pages.

    However, I made a daft error on the last one, so my answer is double what it should be. The rest are correct though (to my knowledge).
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    (Original post by sulexk)
    hey there, just wondering, anyone have a guess at how many potential marks lost from the following:

    1) forgot to multiply by 5

    Vector question: Last bit, I did the wrong perpendicualar bisector(I did the right angle opposite)
    Q7) I produced the correct integral, but when Expanding out I forgot to multiply one of the terms by 10, so as a result one one of expressions was correct the 30t^3, Is What I obtained for one part, but then got the next part wrong, (although I carried on and multiplied by 2)

    For question 8( I cannot rememeber what my answer was, although I do remember getting Sqrt3-1

    something along those lines!

    thank you, any chance of getting 90%, i hear 71 raw marks usually equates to 100ums, how about 65 raw marks?
    My best guess would be

    58/75 - 80UMS
    66/75 - 90UMS
    74/75 - 100UMS

    Very difficult one to predict since not many people will have done C4 in Jan
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    Hey there arsey, just wondering, any ideas on how many marks I would lose for question 7?

    I produced the correct integral with the correct limits(3 and 0 - I also doubled at the end)

    However when expanding the expression I forgot to multiply one of the terms by 10, so I got one part of the final integral correct, but then got the other incorrect leading to an incorrect solution.

    any ideas?

    thanks!
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    You'll lose no more than 2 marks, possibly only one. It's a basic arithmetic error, so they might even give you ECF, but since it was all part of one question you might not. I wouldn't lose sleep over it anyway.

    Can anyone confirm whether or not the question on radius of a circle (ans=0.299) required 3sf? I gave the answer exact then wrote 0.3 just.
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    (Original post by Deno_7951)
    You'll lose no more than 2 marks, possibly only one. It's a basic arithmetic error, so they might even give you ECF, but since it was all part of one question you might not. I wouldn't lose sleep over it anyway.

    Can anyone confirm whether or not the question on radius of a circle (ans=0.299) required 3sf? I gave the answer exact then wrote 0.3 just.
    Go to page 3 paper is posted there -.-'
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    (Original post by Arsey)
    My best guess would be

    58/75 - 80UMS
    66/75 - 90UMS
    74/75 - 100UMS

    Very difficult one to predict since not many people will have done C4 in Jan
    Good point - but looking at years past - your estimates seem to be correct - with 1/2 UMS difference....
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    (Original post by Arsey)
    I don't know what you mean about 3c

    seemed a pretty standard paper to me. I would guess 58-59 / 75
    sorry i meant 2cii, i see i made the mistake, not you. i added 4 instead of subtracting it, so i got 17, in the bracket, instead of 15 for my final answer, OMG lost an A1 ((((((((((

    i think you got a bit more than that tbh, i saw only few errors, could you explain to me why you doubled the area on 7b?
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    (Original post by sulexk)
    Hey there arsey, just wondering, any ideas on how many marks I would lose for question 7?

    I produced the correct integral with the correct limits(3 and 0 - I also doubled at the end)

    However when expanding the expression I forgot to multiply one of the terms by 10, so I got one part of the final integral correct, but then got the other incorrect leading to an incorrect solution.

    any ideas?

    thanks!
    clearly the accuracy mark and perhaps another.
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    (Original post by Rough Inclined Plane)
    sorry i meant 2cii, i see i made the mistake, not you. i added 4 instead of subtracting it, so i got 17, in the bracket, instead of 15 for my final answer, OMG lost an A1 ((((((((((

    i think you got a bit more than that tbh, i saw only few errors, could you explain to me why you doubled the area on 7b?
    because integration between 0 and 3 only gives the area above the x-axis. Basic symmetry means you need to double it to get the complete area. Alternatively, you could have integrated between 3 and -3 which I didn't think of.
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    I failed this spectacularly. -______-
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    (Original post by Arsey)
    clearly the accuracy mark and perhaps another.
    Yep....But for the second answer, you should get the follow through marks.
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    Failure of an exam. Hope i got better than a D this time.
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    i think for que 8 part c posted in the answer is not correct...the volume should be multiplied by only pi not 2pi...pls check tat out
 
 
 
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