You are Here: Home

# AQA D1 24th May 2012 Tweet

Maths exam discussion - share revision tips in preparation for GCSE, A Level and other maths exams and discuss how they went afterwards.

Announcements Posted on
TSR launches Learn Together! - Our new subscription to help improve your learning 16-05-2013
IMPORTANT: You must wait until midnight (morning exams)/4.30AM (afternoon exams) to discuss Edexcel exams and until 1pm/6pm the following day for STEP and IB exams. Please read before posting, including for rules for practical and oral exams. 28-04-2013
1. Re: AQA D1 24th May 2012
The linear was difficult, what did you get for the length of the new road a-j. With the speed?
2. (Original post by nebelbon)
The linear was difficult, what did you get for the length of the new road a-j. With the speed?
I didn't complete that question as I was spending all my time on the last question. D: A sudden brainwave at the end hopefully saved a good few marks.

This was posted from The Student Room's iPhone/iPad App
3. Re: AQA D1 24th May 2012
(Original post by nebelbon)
The linear was difficult, what did you get for the length of the new road a-j. With the speed?
58.5 I think, something along those lines.

Paper went ok... made a few mistakes though, linear programming was weird.
4. Re: AQA D1 24th May 2012
(Original post by D4rth)
58.5 I think, something along those lines.

Paper went ok... made a few mistakes though, linear programming was weird.
58.5km?

I found 58500m.
5. Re: AQA D1 24th May 2012
I got 58.5 too
6. Re: AQA D1 24th May 2012
I got 58.5km also did NOT get the linear programming!? Which meant I couldn't do the rest of the q, so lost quite a few marks there..apart from that it wasn't toooooo bad!
7. Re: AQA D1 24th May 2012
(Original post by Europe Skies)
58.5km?

I found 58500m.
Its the same thing, I doubt they will care if its in km or metres.
8. Re: AQA D1 24th May 2012
What kind of answer did everyone get for the last question?
9. Re: AQA D1 24th May 2012
Anyone else get 100 soft, 400 medium, and 50 firm?
10. Re: AQA D1 24th May 2012
.350,100,50
11. Re: AQA D1 24th May 2012
the Linear equations part was tricky and IMO the graph theory question was hard.

Overall I think it was a harder decision 1 papers but I hope I have done enough to get and A as I got a B last time I sat the exam.
12. Re: AQA D1 24th May 2012
i got 100 soft, 400 medium and 50 firm. so 550 in total.
Also got 58.5km. The vast range of answers that people had at my school for the paper suggests that the grade boundaries will be extremely low.

of, finally, do you reckon that they would accept (n-1)+(n-2)+(n-3)+(n-4)....+(n-n) for the number of edges in a complete graph with n nodes. Yes i agree - graph theory is horrendous!
13. Re: AQA D1 24th May 2012
(Original post by onimusha370)
Anyone else get 100 soft, 400 medium, and 50 firm?
But the max was 500 wasn't it? If so you can't have that
14. Re: AQA D1 24th May 2012
Which question was the graph theory question?
15. Re: AQA D1 24th May 2012
what did we get for the dijkstra and primms i think ig ot 90 something, either 97 or 93 pretty sure it was 97 39 mins for the dijkstras anyone?
16. Re: AQA D1 24th May 2012
what did everyone get for the Chinese postman total distance?
17. Re: AQA D1 24th May 2012
1280 somin like that for the chinese postman rings a bell...??

I can remember getting 97 for the prims.
the MST was a double headed arrow.

then there were two questions about the last edges using prims from dif. places... i think the first was just the same, then the second was the bottom edge on the arrowhead on the LHS (does that make sense?)
18. Re: AQA D1 24th May 2012
(Original post by nebelbon)
But the max was 500 wasn't it? If so you can't have that
Why was the max 500? The only limit was the cost surely?
19. Re: AQA D1 24th May 2012
I think I got 2810 for Chinese Postman, 97 for Prims, 39 for Dijkstra's.
20. Re: AQA D1 24th May 2012
What a beautiful exam! Couldn't believe that tracing algorithm was 6 marks but hey ho!

What were people's problems with the linear programming? I thought it was one of the best LP questions I've done because the maximum was easy to find and nice numbers (100,400) leading to 550 total (100 soft, 400 medium, 50 firm)
Useful resources

## Articles:

Study Help rules and posting guidelinesStudy Help Member of the Month nominations

## Groups associated with this forum:

View associated groups