2024 General Maths VCAA NHT Paper 1 Suggested Solutions | MaffsGuru.com

[@goofyvlogs]

i have my exam in almost 3 weeks and im watching your videos every day for solutions. u truly are a legend and carrying me through maths rn just wanted to let you know me and my mates appreciet you and ive been telling them to watch your videos asw!! srsly dont know what we'd do without you

[@MaffsGuru]

Thank you SOOOOO much for this amazing comment. I am deeply humbled by what you have written. Thanks so taking the time in watching the videos and your support. Wishing you the very best of luck with the forthcoming exams. Please reach out if there is anything more I can do to help.

[@sejalshah6592]

Also Darren for q24, you can go 19288.8/1.08 = 17860, so it's just 17860-(16239.6 x 1.08) = 224.03

[@MaffsGuru]

Thanks so much for this! I really appreciate the feedback and other ways of doing things :)

[@cryptoclan8618]

why are your videos just now being recommended to me what the hell your website is amazing wow thanks for so much help your truely underrated

[@MaffsGuru]

I wish I knew how to get KZbin exposure too lol. Thanks so much for your kind comment. The only way I can get this more visible is if more students and teachers share the content and tell people about my site. If more teachers see it and use it then I’d be stoked. If you can share and share and share I would be most grateful!

[@atrandom967]

For Q36, it's also possible to times all the numbers by -1 and continue from there. For example, for the numbers 4, 3, 6, 1 | 1 is the smallest number but also the biggest negative number -4, -3, -6, -1 | -6 is the smallest number but also the biggest positive number

[@MaffsGuru]

Thanks so much for this. I didn't know there was a way to do Hungarian Algorithm to find the maximum until this year! I am going to teach it from now on :)

[@thomas_radford]

For question 24, once you get 8% interest you can calculate the value of the 3rd period as 19288.8 / 1.08 = 17860 and then solve 1.08 × 16329.60 + d = 17860

[@MaffsGuru]

Ah yes. That was the way someone showed me. I think I prefer the CAS method lol

[@seoarinn]

is 17860 with the payment? how did you get to that?

[@viviennebond4646]

While option A is indeed the correct response, I'm still confused about the reasoning for question 40. If the duration of all activities is one day, wouldn't the latest starting time for activity E be 2 days? J can't occur before G finishes, and G can't occur before E finishes. If E starts 3 days into the project, the completion time would be delayed by a day to make earliest completion 6 days. Now if activity H had a duration of 2 days, then yes, E could have a latest starting time of 3 days, so option D is still a correct statement. Am I missing something? These videos are great, and no doubt a real help to VCE students. Watching mathematics being worked important.

[@MaffsGuru]

Hi. Thanks so much for this comment. I will take a look at it a little later, but this thing which got me initially is that the activities have a duration of "at least" one day. I sat and thought about this WAY too long! I'll bookmark this comment and when I get some time, over the next couple of days (once the Year 12's have left), I will see if I can think more clearly about your reply and the question.

[@muhammedarslan6992]

WHY AM I ONLY FINDING YOU NOW :( YOUR VIDEOS ARE SO HELPFULL

[@MaffsGuru]

I hear that a lot! Sadly people don't really spread the word about my channel or website (www.maffsguru.com) until it's too late. Perhaps you can spread the word to as many people as you can (including all the Maths teachers you know!). If Maths teachers know about my content they are more likely to recommend it. Wishing you the very best for your forthcoming exams!

[@assasinmaster32]

Hey mate, great work with the solutions. Do you have Exam 2 coming up soon? Cheers and thank you so much for the great work!

[@MaffsGuru]

Thanks so much for the time taken in making the comment. I really appreciate it. I will be recording the Paper 2 video this evening. By the time I record, edit, upload and wait for KZbin to process, it should be live tomorrow morning (19th September 2024).

[@janettebennie]

Hi Darren, I love your videos! Just a quick one - for question 14, the examiner's report says the answer is D but I also got B like you. Have we made a mistake or is there an error on the examiner's reports? Thanks!

[@MaffsGuru]

Hi! Thanks so much for letting me know. I have just had someone else ask this. I can't see how the answer is D! I will assume they will update this in due course when people contact them and tell them they are wrong :( Thanks so much for the feedback about the videos :) I really appreciate it!

[@janettebennie]

Thanks heaps Darren!!!

[@goat-w8d]

What algorithm did you use for question 38?

[@MaffsGuru]

Hi. I don't know that it has a name but it's one I was shown a couple of years ago and, on the whole, it works really well. I'm sorry I can't be of more help! I think I have a video on www.maffsguru.com which explains how it works with some examples and what you need to look out for etc.

[@NicholasDionis]

Dear Maffs Guru, From the moment our paths crossed, I knew there was something extraordinary about you, when you taught me how to CRASH (wink wink). Your wisdom in the world of mathematics is a guiding light, illuminating even the most complex problems with clarity and grace (espically financial). The way you unravel intricate theories and make them accessible inspires me daily. Every lesson with you feels like a journey-each equation we explore together opens a door to new realms of understanding. Your passion ignites a fire in me, encouraging me to dive deeper and embrace the beauty of numbers. It’s not just your brilliance that captivates me; it’s your unwavering patience and kindness that make learning such a joy. You challenge me to think critically and creatively, and for that, I am eternally grateful. In your presence, I feel a sense of belonging and encouragement that transcends the classroom. Thank you for being you-my mentor, my inspiration, and my guiding star. I cherish every moment we share and look forward to all the adventures yet to come. With all my admiration and affection, Nick

[@MaffsGuru]

Hi Nick. I do not know what to say to this. Other than Oh My Goodness. This is, without doubt, the nicest thing that anyone has ever written (or said to me). So ... thank you. Now I wish I actually taught you in person! You would do wonders for my self esteem!!! I'm sure there are many more teachers in your life who do much more than me, but thank you. Wishing you all the very best for the rest of this academic year and for your future. Let me know if there is anything more I can do to help. Kindest Regards. Darren.

[@NexuszAU]

For questions 12, how did you shown the r squared value in the data and statistics tab. Mine only shows linear regression

[@MaffsGuru]

What you graph on the screen press MENU -> Settings and click the little box which says 'Diagnostics'. This will show the r squared value on every graph :) I hope this helps!

[@joeloakley7609]

Out of interest-why don't you like the write box on the node method? Are there any situations where you feel it doesn't work as well? I've always found it very easy to apply. Thanks so much for this video. Just a little point-for Qu13 you say months, when it's 4 seasons. Answer still correct.

[@MaffsGuru]

I have had problems in previous years finding the correct float times for some of the activities. It really frustrated me. When I was shown the edge method and it seemed to work all the time, I stuck with this. It also made more sense when teaching.

[@hotkebabs4466]

In the VCAA's report, question 14 is marked as D? even thought the answer is clearly B

[@MaffsGuru]

Interesting! I imagine they will have to look at that again when people email them and let them know. I'm pretty sure the answer is B too.

[@morales8343]

for questions 6 how did you know to use 34 and 13.5?

[@MaffsGuru]

Hi. When you were given the percentage of 81.5% there are only three percentages which will add together to make 81.5%. Hence I had to choose the two 34% and 13.5%. Does this answer your question?

[@seoarinn]

for question 40, why did you put boxes above the dummy activities and calculate est and lst?

[@MaffsGuru]

Hi. You must always include the dummy in the EST and LST calculations as this might affect the EST and LST of anything prior to the dummy. I hope this helps :)

[@seoarinn]

@@MaffsGuru thank you!

[@Zahraaalquraishi-n7n]

hello! im wondering for question 6 how did you get 34+34 and 13.5 for the graph thing

[@MaffsGuru]

Hi. I know that the curve for a normal distribution can be split into sections. The first sections either side of the mean are 34% each etc. So, knowing which sections I want, I just use the respective percentages and add them together. Hopefully your teacher has given you the graphs split into the respective percentages. If not, I have a downloadable summary book for General Maths at www.maffsguru.com. It costs a little but might be helpful. Wishing you the best for the forthcoming exams!

[@sejalshah6592]

other than q14, which was an obvious mistake, I only got q23 wrong bc previous examiners report said something contradictory. Would this get me a 50 if I got 100 on exam 2?

[@MaffsGuru]

I really wish I could answer this question. I am asked it so often :( Sadly, it's always going to be down to your SAC scores and how many other people get the whole paper correct in the state. I taught someone once who got 100% on every SAC. He dropped 8 marks across both papers and went from a 50 to a 32 and then scaled down by 2 to a 30. He and I were devastated! My best advice is to do your best. Wishing you the very best for your exams in a couple of days time :)

[@joeloakley7609]

For qu 38 would you use this method because it's got a lot of possible cuts...rather than finding cuts and comparing? Then use min cut method when there's less possible cuts?

[@MaffsGuru]

I use it for all cut questions. I prefer to use one method which works for all rather than two different methods depending on different things. So I don’t teach the idea of cuts and just show the algorithm.

[@hamidrezaarfany3115]

Thanks

[@MaffsGuru]

You are more than welcome!

[@canabgrape]

Hello Thanks for the video Just wanted to ask, is it best to complete this exam on my own and then refer to your video or should I just watch it now

[@MaffsGuru]

Hi! Thanks for your comment. I would suggest trying the paper on your own and then refer to the solutions to see how well you've done. If you lose any marks, at least you will know where you've lost them. Let me know if there is anything I can do to help.

[@cryptoclan8618]

hey there im a yr 12 student going into exams in 1 month seen ur vids from the 2017 exams to now IM TERRIFIED what can i do?

[@MaffsGuru]

Hi! OK. So, firstly there is still time to do well in General Maths. I recommend working on 3 past papers. See how many questions from each paper you can answer. Then concentrate on those you could "sort of" answer by going back over the related theory. I have the whole course recorded on www.maffsguru.com if that might help. Then look at the questions you had no idea about. Look over the worked solutions I provide and then learn the theory. If you do 30 mins a day on revising the content and some more on doing the past papers you will do much better than you think. Stress is a massive problem as it stops the brain from processing properly. Put any worries to one side. It's not too late. Reach out if there is anything more I can do to help. Just breathe and take it one step at a time. Wishing you the very best of luck over the coming month!!!

[@munchohunnidbands4816]

subscribed

[@MaffsGuru]

Thanks so much! I really do appreciate it. Reach out if there is anything I can ever do to help.

[@cryptoclan8618]

i dont understand where you got the Si formula 30:29 wouldnt the answer be B

[@MaffsGuru]

It's something I have been teaching for years. It's much better than the formula in most of the text book as it gives the correct answer every single time. The answers in this video have been checked and checked again and so I'm 100% certain they are true and correct.

[@cryptoclan8618]

@@MaffsGuru I don’t doubt that, what am I Doing wrong so suppose a questions asks for the Seasonal index of a decrease in 20% wouldn’t that be 0.8 or an increase in 20% which would be 1.2? Is that correct?

[@cryptoclan8618]

@@MaffsGuru would you have a video explaining that formula that would be amazing

[@MaffsGuru]

@@cryptoclan8618 I think I might use it in the video on www.maffsguru.com.

[@MaffsGuru]

@@cryptoclan8618 No sadly not. That's what they are trying to trick you by saying. This would be the percentage multiplier. I think you might need to watch my video on www.maffsguru.com to help understand what this means.