The 5 Hardest Direct & Inverse Proportion Exam Style Questions | GCSE Maths Tutor

A video revising the techniques and strategies for solving difficult direct and inverse proportion problems. (Higher Only).
This video is part of the Ratio & Proportion module in GCSE maths, see my other videos below to continue with the series.
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Revision videos:
The Entire GCSE in Only 2 Hours!! Higher and Foundation Revision | GCSE Maths Tutor - • Everything You Need To...
Everything for a Grade 6-9 in your GCSE Maths Exam! Higher Maths Exam Revision | GCSE Maths Tutor - • Everything for a Grade...
All The Topics You NEED To Know For The 9-1 Maths GCSE 2020 (Higher) - • All The Topics You NEE...
More videos in the series:
All of Ratio in 30 Minutes!! - • All of Ratio in 30 Min...
Inverse Proportion in Context - • Inverse Proportion in ...
Direct and Inverse Proportion (Higher Only) - • Direct and Inverse Pro...
Similar Shapes with Lengths - • Similar Shapes - Linea...
Similar Shapes with Area and Volume (Higher Only) - • Similar Shapes - Area ...
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Пікірлер: 122

  • @alexgreenyer3163
    @alexgreenyer3163 Жыл бұрын

    There's not too many channels that go over specific questions like this and with simple instructions as well, thank you.

  • @TheGCSEMathsTutor

    @TheGCSEMathsTutor

    Жыл бұрын

    I’m so glad you are enjoying the channel! Thank you 😁🙏🏼

  • @gts5646
    @gts56463 жыл бұрын

    This channel right here got me a grade 9 in my mock exam, thank you so much sir 😁🙏🏽

  • @TheGCSEMathsTutor

    @TheGCSEMathsTutor

    3 жыл бұрын

    Amazing news! Congratulations 😁🙏🏼🙏🏼

  • @heartblaze9738

    @heartblaze9738

    3 жыл бұрын

    Was the mock exam hard?

  • @gts5646

    @gts5646

    3 жыл бұрын

    @@heartblaze9738 it was a little hard but manageable at the same time

  • @PenguDZN

    @PenguDZN

    3 жыл бұрын

    What year are you in?? My mocks are in 3 weeks

  • @gts5646

    @gts5646

    3 жыл бұрын

    @@PenguDZN I’m in year 11 right now

  • @yourmanjimbo1302
    @yourmanjimbo1302 Жыл бұрын

    Finally, a channel that covers y in terms of x questions. Thanks.

  • @jameschester7839
    @jameschester78393 жыл бұрын

    Yessss just had this type of question on a test and didn’t have a clue! You are a LEGEND! 👏🏼

  • @TheGCSEMathsTutor

    @TheGCSEMathsTutor

    3 жыл бұрын

    Amazing news! Glad it’s helpful 😁🙏🏼🙏🏼

  • @lisasaad1399
    @lisasaad13993 жыл бұрын

    Thank you so much for these videos! they undoubtedly made revising ideas and ways of solving loads easier.

  • @user-tg1zf6ow4o
    @user-tg1zf6ow4o2 жыл бұрын

    Thanks to u I got a 8 in my recent mock maths test which is really big for since only a year ago I’ve been really struggling with even getting a pass to now getting a and 8 which is an A* so im so thankful for all ur videos they have been a great help❤️

  • @sofiamartin2547

    @sofiamartin2547

    Жыл бұрын

    Very late but well done that’s great 😃

  • @arinahsajid637

    @arinahsajid637

    Жыл бұрын

    how did you revise did u just watch all of his vids and make notes?i have mocks in 2 weeks and im aiming for a 6 or higher.can u plzz help

  • @user-tg1zf6ow4o

    @user-tg1zf6ow4o

    Жыл бұрын

    @@arinahsajid637 what I did is watch all his video but the most important thing to do it not make note but acc do the questions with him than do once you feel you understand it and get the gist then answer the rest of the questions in the video by urswlf then watch him do it and see if you got it right if wrong correct and try do it all again by yourself

  • @user-tg1zf6ow4o

    @user-tg1zf6ow4o

    Жыл бұрын

    @@arinahsajid637 also I watched all his brides ALL that means even his very hard grade nine and grade sevens to nine videos because at the end of GCSEs I got a nine watching him answer hard questions helps you understand how to think and approach hard questions if you don’t have clue by using ur past knowledge makes it very easy to answer hard questions that are at the end of the paper recommend watching the grade nine bridles very helpful also do load of questions and past paper questions as the only way to get good at maths if by practising and not reading I’ve

  • @olliehancock6932
    @olliehancock6932 Жыл бұрын

    Thank you, the formula substitution and formation is so much clearer

  • @nigelpyman6902
    @nigelpyman6902 Жыл бұрын

    Thank you. That was really useful/ There are so few questions with 3 variables on the net. Much appreciated.

  • @GCSEALevelMaths
    @GCSEALevelMaths2 жыл бұрын

    Great video sir good job!!

  • @ahmedmustafa4978
    @ahmedmustafa49783 жыл бұрын

    Great video. Very useful especially the last one. 👍👍👍👍

  • @TheGCSEMathsTutor

    @TheGCSEMathsTutor

    3 жыл бұрын

    Amazing!!! Glad to hear it 😁🙏🏼

  • @ghostty6712
    @ghostty67122 жыл бұрын

    LEGEND 🙌🏽

  • @MKhan-qe9lp
    @MKhan-qe9lp3 жыл бұрын

    cheers for this mate.

  • @TheGCSEMathsTutor

    @TheGCSEMathsTutor

    3 жыл бұрын

    No problem at all! 😁🙏🏼🙏🏼

  • @flamzvfx
    @flamzvfx2 жыл бұрын

    Thx man helped a lot

  • @bobjenkins5356
    @bobjenkins53563 ай бұрын

    super helpful, thanks so much

  • @Masowe.
    @Masowe.3 жыл бұрын

    thank you sir, i did not know these questions exist in a way that i can answer

  • @rayyanabubakar9015
    @rayyanabubakar90153 жыл бұрын

    Thanks for the amazing video

  • @owen2743
    @owen27433 жыл бұрын

    thanks so much. really useful!!!!!!

  • @TheGCSEMathsTutor

    @TheGCSEMathsTutor

    3 жыл бұрын

    No problem at all! Glad to hear it 😁🙏🏼🙏🏼

  • @63mrd
    @63mrd2 жыл бұрын

    On the last question could you take the square root 400 to give 20/6xsquared that simplifies to 10/3xsquared? And thank you for all your incredible videos. Hands down the best GCSE Maths channel on KZread.

  • @cali5635
    @cali56352 жыл бұрын

    thanks so much sir, i will use ur hardest vector trig algebraic fraction playlist and ace my mocks it really specific to the topic list i made after marking my past papers at home

  • @TheGCSEMathsTutor

    @TheGCSEMathsTutor

    2 жыл бұрын

    That’s perfect! Good list of topics to work on there, let me know how you get on 😁🙏🏼

  • @cali5635

    @cali5635

    2 жыл бұрын

    @@TheGCSEMathsTutor sir thanks so much 2 weeks ago I got 56/80 on 2018 non calc paper 1 and yesterday I did the 2017 non calc paper 1 and got 65/80 even the questions I got wrong I managed to get 1 or 2 marks out of 4 Aiming for 70/80 for the mock we do in school

  • @bahijakan2346
    @bahijakan23463 жыл бұрын

    You are the best 👍👍👍

  • @nosibamoktar1203
    @nosibamoktar1203 Жыл бұрын

    Thank you so much

  • @ostobb
    @ostobb2 жыл бұрын

    thanks

  • @maz8652
    @maz86523 жыл бұрын

    TYSMMM

  • @faqirmuhammad3330
    @faqirmuhammad33303 жыл бұрын

    amazing

  • @aaryanramani1699
    @aaryanramani16993 жыл бұрын

    Can you do a video on Loci please, my Mocks are in November and I'm freaking out...

  • @Hassan.07

    @Hassan.07

    3 жыл бұрын

    same there’s so much I need to do in such short time

  • @GCSEALevelMaths

    @GCSEALevelMaths

    3 жыл бұрын

    You can check out corbettmaths!! Please feel free to subscribe to my channel!! Good luck with your studies guys!! All the very best!!

  • @TheGCSEMathsTutor

    @TheGCSEMathsTutor

    3 жыл бұрын

    I’ll be doing this topic soon but it needs to be live recorded, I just need to find a way to do this that works as most of the other tutorials I have seen previously have been quite difficult to follow along with.. I will however make sure this is done before the exams 😁🙏🏼🙏🏼

  • @drillman221

    @drillman221

    2 жыл бұрын

    what did u get for ur maths GCSE if u don't mind me asking

  • @aaryanramani1699

    @aaryanramani1699

    2 жыл бұрын

    @@drillman221 8. Have you done yours?

  • @wqerfdwsqfqwe7662
    @wqerfdwsqfqwe76622 жыл бұрын

    Praying that I get this man

  • @a.a1061
    @a.a10612 жыл бұрын

    thank you so much 😭

  • @TheGCSEMathsTutor

    @TheGCSEMathsTutor

    2 жыл бұрын

    No problem at all! Hope it helped 😁🙏🏽

  • @unrated-spike5644
    @unrated-spike56447 ай бұрын

    Thank

  • @deltavalley4020
    @deltavalley40203 жыл бұрын

    got mocks in 2 weeks, nice ty

  • @TheGCSEMathsTutor

    @TheGCSEMathsTutor

    3 жыл бұрын

    No problem at all! Best of luck 😁🙏🏼🙏🏼

  • @nads0907
    @nads09072 жыл бұрын

    For the first question would -7.5 be accepted?

  • @Bannapickleonion
    @Bannapickleonion Жыл бұрын

    how do i find more questions like theese

  • @christianscottmcwall9963
    @christianscottmcwall99633 жыл бұрын

    for the last question can you simplify it even further by square rooting 100 and 9 to make 10/3xsquared

  • @kirstenlillie2918

    @kirstenlillie2918

    3 жыл бұрын

    No, because then you would have an equation for the square root of y, not y! When we're simplifying a fraction (dividing top and bottom by 4, in this example), we're not changing the value of the RHS of the equation. If we take a square root of the RHS though, then we must also do the same to the LHS. I agree though, that it is very tempting :) Mathematicians love to spot that kind of pattern and it is certainly true that root y = 10/3x^2.

  • @vintxge_taetae
    @vintxge_taetae2 ай бұрын

    Hi.. can someone pls tell are these questions foundation or higher?

  • @DuffyDood15
    @DuffyDood153 жыл бұрын

    14:30 If I rationalised the denominator afterwards would I still get the mark?

  • @TheGCSEMathsTutor

    @TheGCSEMathsTutor

    3 жыл бұрын

    Yes as rationalising is writing an equivalent fraction! 😁🙏🏼🙏🏼

  • @zgamer3268
    @zgamer32683 жыл бұрын

    can someone explain why the formula is y=k/x(power2) when i searched up the formula for inverse proportion it does not say anything about the power 2

  • @TheGCSEMathsTutor

    @TheGCSEMathsTutor

    3 жыл бұрын

    If it is inversely proportional to the square of x then the formula will have to be amended to suit this 😁🙏🏼

  • @Twister00500
    @Twister005002 жыл бұрын

    God bless you

  • @GCSEALevelMaths
    @GCSEALevelMaths3 жыл бұрын

    Very clear and coherent sir nice nice job top work! I make similar videos!!! Well done!!

  • @TheGCSEMathsTutor

    @TheGCSEMathsTutor

    3 жыл бұрын

    Amazing! Thank you for the kind words! So glad to hear it, keep it up 😁🙏🏼🙏🏼

  • @hannahnix5824
    @hannahnix58243 жыл бұрын

    Can you do a video for nov resits like myself please. Just to be more confident and thank you your videos are very helpful!!

  • @TheGCSEMathsTutor

    @TheGCSEMathsTutor

    3 жыл бұрын

    Absolutely! The grade 5 crossover playlist is key for retake students so I would absolutely start there! 😁🙏🏼🙏🏼

  • @hannahnix5824

    @hannahnix5824

    3 жыл бұрын

    The GCSE Maths Tutor Hi, being a math tutor do you think nov exams will be slightly easier or harder? Thank you again

  • @Hassan-xu8rn

    @Hassan-xu8rn

    6 ай бұрын

    if you revise it will be easier

  • @particleonazock2246
    @particleonazock22463 жыл бұрын

    Thank you from Zhangchun He.

  • @adili2405
    @adili24053 жыл бұрын

    Ty so much I know now that I'll get my grade 9 in maths

  • @Mustafa-ve5zj

    @Mustafa-ve5zj

    3 жыл бұрын

    U did Higher Paper 1 today?

  • @adili2405

    @adili2405

    3 жыл бұрын

    @@Mustafa-ve5zj No, u?

  • @ayushadhikari7217
    @ayushadhikari72172 жыл бұрын

    Ty from india

  • @khadija2625
    @khadija26253 жыл бұрын

    there's a reason this has no dislikes

  • @Malawianful
    @Malawianful3 жыл бұрын

    Do you do online tutorial?

  • @emaan_21
    @emaan_215 ай бұрын

    Is this for Edexcel or aqa gcse

  • @eirinieparaschidis2607
    @eirinieparaschidis26072 жыл бұрын

    For the 3rd question, couldn't you just write h=60/0.5 x sqaure root of t ?

  • @TheGCSEMathsTutor

    @TheGCSEMathsTutor

    2 жыл бұрын

    You could but you shouldn’t ever leave a decimal within a fraction for a final answer 😁🙏🏼

  • @diegomandragora4327

    @diegomandragora4327

    2 күн бұрын

    ​@@TheGCSEMathsTutorNooooo. Wrong answer! We can't just take something out of the denominator and do multiplication with it at the end.I know it might looks like as if that implied multiplication between 0.5 and root t has has just gone vanished, but we must not forget that our numerator has effectively doubled. Please edit the comment! 😮

  • @shanejoy6461
    @shanejoy64613 жыл бұрын

    hello can you do a video on standard deviation please

  • @TheGCSEMathsTutor

    @TheGCSEMathsTutor

    3 жыл бұрын

    A great request! I will have a look but I’m not teaching any statistics at the moment 😁🙏🏼

  • @shanejoy6461

    @shanejoy6461

    3 жыл бұрын

    @@TheGCSEMathsTutor oh ok also what do you recommend I do for my mocks in a month time

  • @TheGCSEMathsTutor

    @TheGCSEMathsTutor

    3 жыл бұрын

    @@shanejoy6461 in terms of topics? Which exams are you taking? 😁🙏🏼

  • @shanejoy6461

    @shanejoy6461

    3 жыл бұрын

    @@TheGCSEMathsTutor y11 December mocks all 3 papers for maths

  • @shanejoy6461

    @shanejoy6461

    3 жыл бұрын

    but 1 week before December is p1 during mocks I have p2 and after Christmas holidays is p3

  • @thefreeze6023
    @thefreeze60233 жыл бұрын

    On the first question, wouldn't a second answer be positive 15/2, seeing as x could originally have been -15/2, the negative of which is 15/2?

  • @AliAhmad-mt6ed

    @AliAhmad-mt6ed

    2 жыл бұрын

    yes its either posiitve or negative 15/2

  • @shekinahakinfe8182
    @shekinahakinfe81822 жыл бұрын

    Can't you square root the final answer 10/3x²

  • @qadeersadiq2531
    @qadeersadiq25313 жыл бұрын

    I still don't understand directly proportional sir I an trying really hard but I guess I'm just too dumb 😿😿😿 but your videos are amazing BTW I just guess this topic is not my strongest point

  • @alizasyeda2837
    @alizasyeda28372 жыл бұрын

    How many marks are these kind of questions for?

  • @TheGCSEMathsTutor

    @TheGCSEMathsTutor

    2 жыл бұрын

    3-4 depending on the complexity 😁🙏🏼

  • @Kobby1234
    @Kobby12343 жыл бұрын

    why did you put k in the fraction?

  • @not...not...no.643

    @not...not...no.643

    2 жыл бұрын

    watch the explanation video of proportion first before watching this hard one 👍💞

  • @belalahmedlotfy2099
    @belalahmedlotfy20992 жыл бұрын

    Isn't putting a square root in the denominator breaking the rules???

  • @chloebandle678
    @chloebandle6783 жыл бұрын

    Have u deleted all the papers ?

  • @J.246

    @J.246

    3 жыл бұрын

    yh he did bc skls were using those papers for their mocks

  • @atikamshahid8932
    @atikamshahid89323 жыл бұрын

    The surface area of a sphere is directly proportional to the square of its radius. A sphere of radius 10 cm must be increased to a radius of x cm if its surface area is to be doubled. Find x. Please solve this question for me. I shall be grateful

  • @paiathepuppylover9839

    @paiathepuppylover9839

    Жыл бұрын

    hi, yes this is way too late to be useful for you but maybe it'll be useful for someone else - answer is 14.142

  • @Zllilx
    @ZllilxАй бұрын

    I just have a year left for igcse

  • @medsgamer5905
    @medsgamer59053 жыл бұрын

    Hello

  • @jameschester7839

    @jameschester7839

    3 жыл бұрын

    Hello

  • @jackson9609
    @jackson96093 жыл бұрын

    Who play Among us ↓

  • @TheGCSEMathsTutor

    @TheGCSEMathsTutor

    3 жыл бұрын

    Who doesn’t....

  • @khattakjarir3399

    @khattakjarir3399

    3 жыл бұрын

    @@TheGCSEMathsTutor you play it come me and u play one day also sick videos

  • @masteryooda9087
    @masteryooda90872 жыл бұрын

    this ain't complicated enough what if you aren't given D :(

  • @bugy_raid
    @bugy_raid Жыл бұрын

    loud