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Mr M's Edexcel GCSE Linear Mathematics Higher 1MA0 Paper 2 Answers November 2015 watch

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    (Original post by ad4m)
    Q20: Watch A was 100% plastic
    Watch B was 340° plastic and 20° metal.

    Cost is in ratio 3:2 for metal and plastic.

    360 x 2 = 720
    340 x 2 = 680
    20 x 3 = 60
    680 + 60 = 740

    740 / 20 = 37
    720 / 20 = 36

    So ratio is 36:37.

    It was a pretty easy question, but I like many others fell into the trap of working out the area of the sector/circles. But it was only 4 marks.
    so would u get no marks for working out the area of the circle??
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    (Original post by Kmohazeb)
    so would u get no marks for working out the area of the circle??
    I'm not quite sure, but considering it doesn't go towards the mark i would think not. However, it might've been possible still to find a ratio working it out that way. I would say no for now.
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    Could you help me with 15b, 19 & 24?
    I dont remember any of the questions.
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    (Original post by ad4m)
    I'm not quite sure, but considering it doesn't go towards the mark i would think not. However, it might've been possible still to find a ratio working it out that way. I would say no for now.
    I think I wrote 360 divided by 5 (because the ratios added up to 5) and 340 divided by 5 then multiplied it with the area of the circles or the ratio or something among those lines idk...looking at the question now is easy! just annoys me that I didn't get it right during the exam...
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    (Original post by Kmohazeb)
    I think I wrote 360 divided by 5 (because the ratios added up to 5) and 340 divided by 5 then multiplied it with the area of the circles or something among those lines idk...looking at the question now is easy! just annoys me that I didn't get it right during the exam...
    Yeah me too! if it was nearer the front I would've done it easily. But they put some easier questions at the back to confuse us!
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    Does anyone have a copy of the values used in Q24? I don't have a copy of the paper and need the values to work out the answer? I remember the angle was about 40° but can't remember the length?
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    What if you didn't simplify??,,
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    (Original post by TaraG9238)
    What if you didn't simplify??,,
    I reckon you'd still get 3 marks out of the 4.
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    (Original post by Kmohazeb)
    so would u get no marks for working out the area of the circle??
    1 mark I expect.
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    For the stratified sampling question I wrote 10 instead of 9. Does this mean I will drop a mark?
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    I didn't simplify the probability on the last question. Would I lose any marks?

    Also, what was Question 11a?
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    (Original post by harry412)
    I didn't simplify the probability on the last question. Would I lose any marks?

    Also, what was Question 11a?
    No, you wouldn't lose any marks (you dont usually need to simplify unless asked normally, they'll accept both answers)

    Question 11a was:

    3x2 = 147
    Answer x = 7
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    (Original post by Pastels123)
    For the stratified sampling question I wrote 10 instead of 9. Does this mean I will drop a mark?
    Yes I think you would
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    Can anyone remember the length for question number 24?
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    can anyone tell me how they got 49 minutes?
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    does anyone know the grade boundaries for november 2015? i know that in June 2015 it was 65 for a C
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    I wrote 11b as a decimal (found the fraction then did 1 divided by 8). Will I lose any marks?
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    (Original post by cjtesfaye)
    does anyone know the grade boundaries for november 2015? i know that in June 2015 it was 65 for a C
    They're not released until the day before results are issued.
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    I got around 120/200 what grade do you think that would be?
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    (Original post by harry412)
    I wrote 11b as a decimal (found the fraction then did 1 divided by 8). Will I lose any marks?
    I think you should get the mark, not entirely sure tho
 
 
 
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