You are Here: Home >< Maths

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

1. [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 ...
2. [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
3. 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
4. (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.
5. [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
6. How many critical activities? 4? And which?
7. What was the route length for the first part of chinese postman?
8. (Original post by FugFig)
How many critical activities? 4? And which?
Yeah I had 4 critical values .. sure about that being correct
9. (Original post by Nikhilm)
Anyone remember a 459?

Posted from TSR Mobile
Yeah from Chinese postman - people saying it's 460 though :/
Yeah from Chinese postman - people saying it's 460 though :/
Yeah idk what the answer is...anyone else get 459?
11. (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
12. I swear it's physically impossible to finish that d1 paper in time
13. (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!
14. (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.
15. (Original post by TheMathsMan)
Yeah I had 4 critical values .. sure about that being correct
Was there a question asking to state how many?
16. (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
17. (Original post by Nikhilm)
Yeah idk what the answer is...anyone else get 459?
I got 459.
18. (Original post by lucabrasi98)
Was there a question asking to state how many?
No but you needed to know them for the gannt chart
19. (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
20. (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!

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: June 21, 2016
Today on TSR

### Does race play a role in Oxbridge admissions?

Or does it play no part?

### The worst opinion about food you'll ever hear

Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

• Poll
Useful resources

Can you help? Study help unanswered threadsStudy Help rules and posting guidelinesLaTex guide for writing equations on TSR

## Groups associated with this forum:

View associated groups
Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

• The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.