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*Rough*DECISION 1 EDEXCEL JUNE 17TH MARKSCHEME w/Explained Answers Watch

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    [QUOTE=TheMathsMan;65872130]w = 11 because they tell you the float is 1 so 17 - w - 5 = 1 therefore w = 17-5-1 which is 11
    z = 4 because that was the shortest going back when the early was 3 ..
    y = 17
    x = 22
    so you got 2 out of the 4 right ...
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    [QUOTE=TheMathsMan;65872230]
    (Original post by TheMathsMan)
    w = 11 because they tell you the float is 1 so 17 - w - 5 = 1 therefore w = 17-5-1 which is 11
    z = 4 because that was the shortest going back when the early was 3 ..
    y = 17
    x = 22
    so you got 2 out of the 4 right ...
    I had X as well bro - 22 was always in there. I'm usually good with float so I think I got 11. At least 3/4
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    I didn't do too bad ... but I mucked up on a few ... like the linear programming .. I put y + 3/2x whereas you'all are saying 3/2y + x which makes more sense ... I was rushing and I don't read properly when I'm rushing .. that resulted in me losing a further 5 marks from the next few questions ... then I lost 3 marks for leaving the 2nd gannt chart ... then I lost about 1 mark for not answering the second part to the flowchart question ... I answered the which one should be x but not the one after that. I lost 2 more marks because of a stupid mistake I made that I don't want to share ;-P so that leaves ... 64/75 which is me being generous so I'd say I got 60 which I'm satisfied with unless the examiners are complete ass holes and they mark incredibly harshly like they did for my AS's
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    (Original post by frances98)
    Im pretty sure it was 12

    It think it was11. Because D had a float of 1. Therefore, it was 17-?-5=1

    .............which gives 11.
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    [QUOTE=TheMathsMan;65872230]
    (Original post by TheMathsMan)
    w = 11 because they tell you the float is 1 so 17 - w - 5 = 1 therefore w = 17-5-1 which is 11
    z = 4 because that was the shortest going back when the early was 3 ..
    y = 17
    x = 22
    so you got 2 out of the 4 right ...
    Exactly what I got
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    How many critical activities? 4? And which?
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    What was the route length for the first part of chinese postman?
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    (Original post by FugFig)
    How many critical activities? 4? And which?
    Yeah I had 4 critical values .. sure about that being correct
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    (Original post by Nikhilm)
    Anyone remember a 459?

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    Yeah from Chinese postman - people saying it's 460 though :/
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    (Original post by adso222)
    Yeah from Chinese postman - people saying it's 460 though :/
    Yeah idk what the answer is...anyone else get 459?
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    (Original post by TheMathsMan)
    I didn't do too bad ... but I mucked up on a few ... like the linear programming .. I put y + 3/2x whereas you'all are saying 3/2y + x which makes more sense ... I was rushing and I don't read properly when I'm rushing .. that resulted in me losing a further 5 marks from the next few questions ... then I lost 3 marks for leaving the 2nd gannt chart ... then I lost about 1 mark for not answering the second part to the flowchart question ... I answered the which one should be x but not the one after that. I lost 2 more marks because of a stupid mistake I made that I don't want to share ;-P so that leaves ... 64/75 which is me being generous so I'd say I got 60 which I'm satisfied with unless the examiners are complete ass holes and they mark incredibly harshly like they did for my AS's
    I messed up on bin packing FFS! Harshly 1/5
    Algorithm I don't think the answer is about it going negative - it's about it always being odd - of so that's another 2.
    Prim's I rushed like mad so harshly 1/4
    Probably dropped marks on the network 2/5 harsh as possible.
    Question 7: blergh probably 8 marks harshly.
    Question 8 : 7 harshly
    Absolute minimum is around 50. Hopefully error carried forward and methods mean I could scrape 60. Averaging that out so realistically 55-57. Damn
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    I swear it's physically impossible to finish that d1 paper in time
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    (Original post by ellie.12)
    I think you got the points wrong for -x+24y=24 i got points (0,1) (24,2) not sure if this is right but gave me a final answer of 11 and 4
    This is what I got!
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    (Original post by Nikhilm)
    Yeah idk what the answer is...anyone else get 459?
    People on the SR can be wrong .. I would tell you the correct answer but I don't remember my own after suffering a major headache after looking at the brain **** that was this paper .. If you remember the weight of the network for route inspection then I can tell you.
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    (Original post by TheMathsMan)
    Yeah I had 4 critical values .. sure about that being correct
    Was there a question asking to state how many?
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    (Original post by TheMathsMan)
    People on the SR can be wrong .. I would tell you the correct answer but I don't remember my own after suffering a major headache after looking at the brain **** that was this paper .. If you remember the weight of the network for route inspection then I can tell you.
    The weight was 384 and I remember getting a 75 which totalled 459. Then for the second i used 35 to get 419
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    (Original post by Nikhilm)
    Yeah idk what the answer is...anyone else get 459?
    I got 459.
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    (Original post by lucabrasi98)
    Was there a question asking to state how many?
    No but you needed to know them for the gannt chart
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    (Original post by Nikhilm)
    The weight was 384 and I remember getting a 75 which totalled 459. Then for the second i used 35 to get 419
    Oh yeah .. I remember .. that is absolutely correct I'm sure of it
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    (Original post by Nikhilm)
    The weight was 384 and I remember getting a 75 which totalled 459. Then for the second i used 35 to get 419
    That is correct!
 
 
 
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