@@mqrshel quick question: if you know the final completion time (in this case 18 weeks), do you use this method? But if you don't know the final completion time and they ask you for it, then do you just crash every possible activity on the critical path and see that way? Thank you!
@user-ym5vn8pm8i you would have to see the lowest critical path that can be possible and then find out the minimum cost to obtain that as there will be some unnecessary reductions. So you would have to use this method I used
quick question, why did you reduce activity K at the very end instead of reducing activity H again, wouldn't you still get to 18 weeks but with a lower cost overall?
Nah because there are other critical paths that are 19 weeks long that don't have H whereas K targets all these critical paths to effectively reduce it all to 18
I'm not sure why you weren't tempted to reduce D by 2 at the start. Is there any reason you specifically chose to reduce D by 1 before going straight on to reduce G by 1? I get your overall process, but it seemed as if that decision was arbitrary. Am keen to hear/see any explanation that that rigorously addresses the decisions being made from step to step.
There's no point in reducing D by 2 straight away. Path C and E = 8. Path D = 9. So reducing D by 2 would become 7 and the path of C+E would become the critical path and thus reducing D twice would be unnecessary as you would also have to reduce C too but there are cheaper alternatives.
omg IVE BEEN STRUGGLING ON THIS FOREVER THANK YOU!!!! also, i have a question - i've been doing practice exams and taking ages to finish them (i'm talking hours) because i've forgotten a lot of the content from unit 3 and keep having to refer back to textbook/worked examples and read through them step by step which takes forever. i know it doesn't exactly sound promising based on my situation but i'm hoping to lose little to no marks on the exams which are in 4 weeks so how do you reckon i should go about it? i'm in year 11 so i only have one other exam which makes it a bit easier but i've started by making an actual bound reference book from scratch with all topics as a refresher but idk if i should finish that and dive back into exams or do a couple textbook questions from each section or what? thank u sm!
When making your bound reference, for now you should only be taking the content from chapter summaries because I think you are running out of time. In your practice exams for now, try to do all the questions that you 100% know how to do under strict time conditions and try to obtain as much of the easier marks as possible. Then look at your weak areas/things you weren't able to finish with and revise those separately for the exam. I cannot guarantee if you are able to score in the high 90s but it is possible if you prioritise general maths instead of your year 11 subjects as this will count to your ATAR. If you are planning to do textbook questions, just do a few until you get the grasp of it and then back move onto practice exams. But yea good luck and hope you do well
How do I actually improve in practice exams and minimize errors. I've done around 10 practice exams already and I dont seem to be improving that much throughout them. What's the best way to go about improving and doing well in the general maths exam?
@@mqrshel Ok thanks. Also, how wouldyou go about just improving in general with exams. The questions I get wrong are not all like from the same section or kind of question or anything so there's no specific area that I need to go back to and learn better. How do I just go about improving exam results and getting to 100% in practice exams, do you have any strategies?
@@mqrshel In exam 1 I'm averaging around 38/40 and for exam 2 its a bit lower, I think around 56-57/60 maybe. Although keep in mind that these are all exams from other companies (not vcaa) so idk if their easier or harder than the actual ones. So far I've done around 13 exams in total I think.
@@brickfilmgamerpro8644 those scores are pretty solid but yeah you gotta start doing VCAA ones for more accurate results. I think you should write down the mistakes you make somewhere. If you make the same mistake, then you have to write it in red and underline. This usually helps you to remember.
heyy, just a quick question, for general math, our cohort is averaging 60-70%, and im averaging 65% (ik that prob sounds rlly stupid, and u might think that were all idiots, but the sacs r extremely hard), out of the 100 studnets, 65 failed both the finance and matrices sacs. do u reckon my sac marks will be moderated and scaled up if i absolutly obliterate the exam, (like do rlly good on both)? do u reckon i can get that 40ss? I was thinking, if i get a not that great study score, do u think its best if i repeat it in yr 12 (since im currently in yr 11)? or do u think its a waste of time, and its gonna be rlly hard since i have other 3/4 subjects to focus on? THANKK!!!
I think yea its possible to get 40+ but only if you do extremely good on the exams, because right now, you are saying your SAC marks are mid. If you're aiming for a 95+ ATAR, then redo general maths if you get in the 30s, otherwise move on
Networks is actually the worst unit of maths I've ever done, but you make it easier. Cheers! You sort of go off feeling and logic, but did yoiu learn algorithms? If yes, why did you reject them? Thanks again
@@mqrshel like specific methods to solve each type of question. From your explanations, they're more logical and use common sense, which makes sense, but I prefer having a structured method for each type of question.
@@yiqnni9789 ohh, it depends on the question given and as you do more practice questions, you will know when to cut corners and save time without sticking to a structured method. Some algorithms I did indeed reject as I became more acquainted with those question types.
How many practice exams would you recommend to do before the actual exam? is around 40 enough or is it better to do more? Also, how difficult is it to score 100% or close to it in the exams and how can i work on minimizing errors?
It depends if you're aiming for a 50. If your exam accuracy is high, then you will not have to do as many exams, otherwise more is required. I have been able to score 100% in my GM practice exams, its not impossible.
@meetshah6352 I forgot, is MAV harder than VCAA? If MAV is harder or the same level, great job. Now do the newer VCAA ones, because they will emulate the exam the most perfectly. If you are still getting 100s, then you can slow down your pace with general maths and focus on your other subjects and revisit general maths every now and then so you don't forget
@@mqrshel Ok thanks. I've done pretty well in the sacs so far (averaging around 90 percent or higher and I think I'm rank 1 although out of a very small cohort.) What mark do you think I would need to get or should aim for in the exam to get a 45+ study score? Will i only have room to loose very few marks in the exam and what should I be aiming for?
YOU'RE A LEGEND! THANK YOUU!!!
NO WORRIES!
@@mqrshel quick question: if you know the final completion time (in this case 18 weeks), do you use this method? But if you don't know the final completion time and they ask you for it, then do you just crash every possible activity on the critical path and see that way? Thank you!
@user-ym5vn8pm8i you would have to see the lowest critical path that can be possible and then find out the minimum cost to obtain that as there will be some unnecessary reductions. So you would have to use this method I used
Thank you Marshel for this, I was so stuck on networks but this video just explained it all, i ended up getting 99% on my SAC 📈📈🤙🤙
LOL
Thank you so much Marshel!!!!
quick question, why did you reduce activity K at the very end instead of reducing activity H again, wouldn't you still get to 18 weeks but with a lower cost overall?
Nah because there are other critical paths that are 19 weeks long that don't have H whereas K targets all these critical paths to effectively reduce it all to 18
@ so we prioritise reducing as many paths as possible rather than cost?
@@sorbetbugs you prioritise reducing the critical path, especially if that's the goal of the question
@ alright that makes sense, tysm for answering
Hey marshel, do you know where to get any practice exams.
yeaaaa on the VCAA website there are past exams.
Hi Marshel, could you make a video on the method you used for min cut max flow?
I'm not 100% sure if I have time but do you know what VCE question has that so I can check?
I'm not sure why you weren't tempted to reduce D by 2 at the start. Is there any reason you specifically chose to reduce D by 1 before going straight on to reduce G by 1? I get your overall process, but it seemed as if that decision was arbitrary. Am keen to hear/see any explanation that that rigorously addresses the decisions being made from step to step.
There's no point in reducing D by 2 straight away. Path C and E = 8. Path D = 9. So reducing D by 2 would become 7 and the path of C+E would become the critical path and thus reducing D twice would be unnecessary as you would also have to reduce C too but there are cheaper alternatives.
omg IVE BEEN STRUGGLING ON THIS FOREVER THANK YOU!!!! also, i have a question - i've been doing practice exams and taking ages to finish them (i'm talking hours) because i've forgotten a lot of the content from unit 3 and keep having to refer back to textbook/worked examples and read through them step by step which takes forever. i know it doesn't exactly sound promising based on my situation but i'm hoping to lose little to no marks on the exams which are in 4 weeks so how do you reckon i should go about it? i'm in year 11 so i only have one other exam which makes it a bit easier but i've started by making an actual bound reference book from scratch with all topics as a refresher but idk if i should finish that and dive back into exams or do a couple textbook questions from each section or what? thank u sm!
When making your bound reference, for now you should only be taking the content from chapter summaries because I think you are running out of time.
In your practice exams for now, try to do all the questions that you 100% know how to do under strict time conditions and try to obtain as much of the easier marks as possible. Then look at your weak areas/things you weren't able to finish with and revise those separately for the exam.
I cannot guarantee if you are able to score in the high 90s but it is possible if you prioritise general maths instead of your year 11 subjects as this will count to your ATAR.
If you are planning to do textbook questions, just do a few until you get the grasp of it and then back move onto practice exams.
But yea good luck and hope you do well
How do I actually improve in practice exams and minimize errors. I've done around 10 practice exams already and I dont seem to be improving that much throughout them. What's the best way to go about improving and doing well in the general maths exam?
I think reading the question more carefully and highlighting key words is a good strategy to mitigate errors
@@mqrshel Ok thanks. Also, how wouldyou go about just improving in general with exams. The questions I get wrong are not all like from the same section or kind of question or anything so there's no specific area that I need to go back to and learn better. How do I just go about improving exam results and getting to 100% in practice exams, do you have any strategies?
@@brickfilmgamerpro8644 what % are you averaging now?
@@mqrshel In exam 1 I'm averaging around 38/40 and for exam 2 its a bit lower, I think around 56-57/60 maybe. Although keep in mind that these are all exams from other companies (not vcaa) so idk if their easier or harder than the actual ones. So far I've done around 13 exams in total I think.
@@brickfilmgamerpro8644 those scores are pretty solid but yeah you gotta start doing VCAA ones for more accurate results. I think you should write down the mistakes you make somewhere. If you make the same mistake, then you have to write it in red and underline. This usually helps you to remember.
what app did you use for the practice question?
I used the default whiteboard on windows
heyy, just a quick question, for general math, our cohort is averaging 60-70%, and im averaging 65% (ik that prob sounds rlly stupid, and u might think that were all idiots, but the sacs r extremely hard), out of the 100 studnets, 65 failed both the finance and matrices sacs. do u reckon my sac marks will be moderated and scaled up if i absolutly obliterate the exam, (like do rlly good on both)? do u reckon i can get that 40ss? I was thinking, if i get a not that great study score, do u think its best if i repeat it in yr 12 (since im currently in yr 11)? or do u think its a waste of time, and its gonna be rlly hard since i have other 3/4 subjects to focus on? THANKK!!!
I think yea its possible to get 40+ but only if you do extremely good on the exams, because right now, you are saying your SAC marks are mid. If you're aiming for a 95+ ATAR, then redo general maths if you get in the 30s, otherwise move on
Networks is actually the worst unit of maths I've ever done, but you make it easier. Cheers! You sort of go off feeling and logic, but did yoiu learn algorithms? If yes, why did you reject them? Thanks again
No worries. Also what do you mean by algorithms? Which ones in particular?
@@mqrshel like specific methods to solve each type of question. From your explanations, they're more logical and use common sense, which makes sense, but I prefer having a structured method for each type of question.
@@yiqnni9789 ohh, it depends on the question given and as you do more practice questions, you will know when to cut corners and save time without sticking to a structured method. Some algorithms I did indeed reject as I became more acquainted with those question types.
do u have anywhere i can dm u a question
yea i do
@@mqrshel can u drop ur ig or smth
WHats the point of doing these questions when they wont pop up in our exams again?
what do you mean
How many practice exams would you recommend to do before the actual exam? is around 40 enough or is it better to do more? Also, how difficult is it to score 100% or close to it in the exams and how can i work on minimizing errors?
It depends if you're aiming for a 50. If your exam accuracy is high, then you will not have to do as many exams, otherwise more is required. I have been able to score 100% in my GM practice exams, its not impossible.
@meetshah6352 I forgot, is MAV harder than VCAA? If MAV is harder or the same level, great job. Now do the newer VCAA ones, because they will emulate the exam the most perfectly. If you are still getting 100s, then you can slow down your pace with general maths and focus on your other subjects and revisit general maths every now and then so you don't forget
@meetshah6352 nice brooo, tell me what study score you end up getting, all the best 💯
@@mqrshel Ok thanks. I've done pretty well in the sacs so far (averaging around 90 percent or higher and I think I'm rank 1 although out of a very small cohort.) What mark do you think I would need to get or should aim for in the exam to get a 45+ study score? Will i only have room to loose very few marks in the exam and what should I be aiming for?
@@brickfilmgamerpro8644 yeah for 45+, you could afford to lose very minor marks, aim for 95%+
I can’t even do a single part of this question.
I’m too lazy to study.
😂🤣🤣
I might crash out more than this graph if this is on my exam 😭😭😭😭😭😭
LOL
ate