OCR (not MEI) D2 - 18/05/2012
Maths exam discussion - share revision tips in preparation for GCSE, A Level and other maths exams and discuss how they went afterwards.
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Re: OCR (not MEI) D2 - 18/05/2012I thought it was a nice paper, timing was much better than last years papers IMHO. The last part of the CPA question was a bit strange though...(Original post by TRLMaths)
Thoughts? -
Re: OCR D2 May 2012That's the same as what I got for all of those, I got the critical activities as something like BCD and I (if I remember correctly) - did you get 2am for the D.P plane question?(Original post by lilipop)
I've just done it, didn't finish the last two bit
Anyone wants to check answers?
I could only remember a few answers…
Game Theory: p=0.6 and q=0.5
Critical activities: minimum completion time: 12 hours. critical activities BCDand something like I or J? -
Re: OCR (not MEI) D2 - 18/05/2012Same here. I don't understand why they couldn't just give 5 questions and everyone would be happy.(Original post by fallen_child)
nicer paper than jan 2012 but still find it difficult manage to finish
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Re: OCR D2 May 2012yes~~~2 am, and then 7 am, 10 am and 1 pm for passing through? I crossed out the start and the end cause I didn't think that's part of 'passes through'… Hope I'm right.(Original post by SBarns)
That's the same as what I got for all of those, I got the critical activities as something like BCD and I (if I remember correctly) - did you get 2am for the D.P plane question?
and it was I, J is after E.(suddenly remember it now) -
Re: OCR (not MEI) D2 - 18/05/2012totally agree !!!! they should put the grade boundary lower as well !!!(Original post by lilipop)
Same here. I don't understand why they couldn't just give 5 questions and everyone would be happy. -
Re: OCR D2 May 2012Yes those are the time I got, I thought that too so I put (0;0) departs at blah, (1;0) passes through at blah etc etc then (4;0) arrives at 3pm - but you won't lose marks because they only asked for the times in the middle of the route (ie - not the start or end).(Original post by lilipop)
yes~~~2 am, and then 7 am, 10 am and 1 pm for passing through? I crossed out the start and the end cause I didn't think that's part of 'passes through'… Hope I'm right.
and it was I, J is after E.(suddenly remember it now)
Sounds right.
The only real challenge on the paper was the last two parts of the last question, and it was only worth 5 marks...but I was starting to run out of time by then anyway. -
Re: OCR D2 May 2012The one where they asked you to reduce the array for the hungarian algorithm was difficult to squash in. To be honest the understanding type questions were only worth (IMO) 5 marks, so overall a fair paper. What did you think of the timing?(Original post by SecondHand)
Quite a standard exam I thought, I just ran out of room on a few of the questions. The last few questions are going to be the hardest and they involve understanding rather than knowledge. -
Re: OCR D2 May 20126 vi and vii?(Original post by SBarns)
Yes those are the time I got, I thought that too so I put (0;0) departs at blah, (1;0) passes through at blah etc etc then (4;0) arrives at 3pm - but you won't lose marks because they only asked for the times in the middle of the route (ie - not the start or end).
Sounds right.
The only real challenge on the paper was the last two parts of the last question, and it was only worth 5 marks...but I was starting to run out of time by then anyway.
I think vi was fine although I didn't finish it…
D2 questions take longer than they look like…
I had extra time but still didn't finish the whole paper…
for Q1~Q4, I spent 15min on average for each(include the time I spent on checking my answers), Q5 and Q6 needed explanations so…took longer. -
Re: OCR D2 May 2012There were 4 parts to the last question about Tariq and Sally, I got the first two but then had to guess the last two parts - I'm not too bothered really as (hopefully) everything else is more or less correct.(Original post by lilipop)
6 vi and vii?
I think vi was fine although I didn't finish it…
D2 questions take longer than they look like…
I had extra time but still didn't finish the whole paper…
for Q1~Q4, I spent 15min on average for each(include the time I spent on checking my answers), Q5 and Q6 needed explanations so…took longer.
I did the first 4 questions and had about half an hour to spare, network flows needed a bit of thought but was alright. Do you do further then? -
Re: OCR D2 May 2012I can't remember what answer I got, but I know I had to augment by 2 (I think) - then pick out the order. Definitely only one augmentation though.(Original post by FK_)
What did people get for the Hungarian Algorithm question ?

