Inverse Proportion in Context | Rate of Output | GCSE Maths Tutor

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A video revising the techniques and strategies for solving inverse proportion problems. (Higher & Foundation).
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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These are the new revision guides I recommend 💡
Higher - New Grade 9-1 GCSE Maths Edexcel Student Book - Higher (with Online Edition) (CGP GCSE Maths 9-1 Revision) - amzn.to/366PltG
Foundation - New Grade 9-1 GCSE Maths Edexcel Student Book - Foundation (with Online Edition) (CGP GCSE Maths 9-1 Revision) - amzn.to/2PpbjBF
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...
Proportion in Context - • Direct Proportion in C...
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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13 окт 2024

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Комментарии : 101

@dollya5407 4 года назад

Why doesn't this channel have a million subscribers? Thank you so much!

@TheGCSEMathsTutor 4 года назад

D O L L Y A Let’s hope it gets there! Thank you!!!

@uknown5732 4 года назад

Alie these videos are really good.Thanks

@TheGCSEMathsTutor 4 года назад

SVlogS Thank you! 😁 great to hear!

@jobgooglw8845 4 года назад

The GCSE Maths Tutor do u mind doing a video on money solving problems please? And shape problems like “solve the area of this large triangle I tend to struggle

@evelynlast5242 2 года назад

I don't know why, but i was always stumped by these questions in maths papers, i could never get my head around them and i never understood them because my teacher never explained it in a way i understood- but somehow in one 13 minute video, you have managed to explain it to me !! you truly are working miracles here! thankyou very much.

@TheGCSEMathsTutor 2 года назад

Well this is just amazing! I’m so glad to hear that the channel has worked so well for you, it’s amazing how it clicks when you find a method that works for you, keep up the great work! Thank you so much for the kind words 😁🙏🏼

@ernestg.3260 3 года назад

I am doing GCSE maths. As a foreigner, it is quite a challenge to get a pace when English is not your first language. However, I like the way you explain things. Concise and straight to the point.

@cavemanbrudavcaks5939 3 месяца назад

what did u get

@erenyeager6668 Год назад

for the guys confused at the questions after 6:50, my own maths teach at school doesn't even understand it, just memorise the steps and you're good, its a very common paper 1 question, it'll almost certainly come up

@ryuxfx52 6 месяцев назад

Speak for yourself, if you want to just get your grade aren't doing any more maths in Alevel fine. But if you wish to study maths further you need to understand the underlying logic & reasoning behind the explanations.

@erenyeager6668 6 месяцев назад

⁠its ironic because i do a level maths now and not once did we talk about proportionality or inverse proportionality so its a win 🎉

@tropicalland4552 5 месяцев назад

@@erenyeager6668how’s it

@abbouddin9105 4 года назад

on the 8 machines 9 days question, what do you mean by on the 1st day it takes 3 days of work?

@swldnsstory9843 2 года назад

The days of work are equivalent to the amount of machines used :)

@anyonymous9145 2 года назад

@@swldnsstory9843 yh but it clearly aint the case when it took 8 machines 9 days .....

@swldnsstory9843 2 года назад

@@anyonymous9145 I mean... it does

@saudiaair 2 года назад

icl its really confusing but in maths sometimes its just the way it is dont overcomplicate it

@Diana-hn1li 2 года назад

@@saudiaair i couldn't properly understand the reasons behind the steps so i just memorized how to do them

@SpaceCat-v1p 4 года назад

Thank u i did paper 3 and got two marks off full marks

@umerhussain3855 Год назад

Higher or foundation?

@ahmD-ce8cr 4 года назад

Thank you so much, great vid. Saved me as I have a paper 3 mock tommorow. 👍👍👍

@TheGCSEMathsTutor 4 года назад

Ahmed Mustafa Great to hear! 😁 good luck!!

@ahmD-ce8cr 4 года назад

@@TheGCSEMathsTutor Thank you so much, I subscribed and liked and your videos help me a lot.

@user-yf6ns7ji4f 3 года назад

@@ahmD-ce8cr what you get

@ahmD-ce8cr 3 года назад

@@user-yf6ns7ji4f I didn't do the actual exams because it was cancelled but I got an A for maths

@user-yf6ns7ji4f 3 года назад

@@ahmD-ce8cr was your mock hard

@YN-ry6cc 4 года назад

This channel literally needs 100000000000000000000 subscribers This channel is 👍

@js4cookie 3 года назад

Can anyone help me understand, in the second half wordier questions I understand it all up until the final step of adding 'the initial Day 1/2/3) part? Have we not already done that by tallying up the number of days/machines working that day and subtracting it from the days/hours of one person? I can't get my head round it? Feels like the step is being repeated twice

@MrResearcher122 2 года назад

I like the laid back modern R&B and jazzy music. You really have a wonderful format with nice explanations followed by 'you have a go' examples. This was a word salad, but broken down it really just involved basic arithmetic: 1st bit multiplying for one Worker or machine; second, adding days; then subtract the result from the multiplication number in 1st bit; then divide remaining days into that; and finally adding the number of days (in second bit) to the result of the final bit. Voila! Interestingly, the Persian founder of Algebra never used much numerals in his explanations but words. For maths is really just a language, but one with its own symbols and signs.

@valious420 17 часов назад

comment for the algorithim so more people can see this mans amazing videos

@TheGCSEMathsTutor 17 часов назад

@@valious420 you are too kind, thank you ☺️

@valious420 17 часов назад

@@TheGCSEMathsTutor kind?? no, no im simply trying to show my admiration for a channel who should be very famous

@shanejoy6461 4 года назад

sir do you organise the playlist in what you should learn first?

@ambahniah7784 2 года назад

i kinda understand now but what do you mean initial days and where did it come from?

@_JackDavid 4 года назад

For the 8 machines 9 days question what do you mean by 1 day= 3 days of work?

@TheGCSEMathsTutor 4 года назад

In the first day 3 machines are used, so in terms of 1 machine running for 1 day and doing 1 days work, if 3 are running for that first day then it would equate to 3 days worth of work if only 1 machine was running 😁🙏🏼🙏🏼

@_JackDavid 4 года назад

@@TheGCSEMathsTutor ohhh thank you so much! Life saver!

@BRECKDOG 3 года назад

@@TheGCSEMathsTutor This is the only thing in all the videos I have watched that baffles me.

@zecdi 3 года назад

@@BRECKDOG yh same this shit confuses me more than grade 9 stuff lol

@S123-x5b 4 года назад

This was very helpful, thank you😊.

@TheGCSEMathsTutor 4 года назад

Sonia Galiza Great to hear!! 😁🙏🏼

@jamesmalis9331 3 года назад

I’m in year 9 and I’m gonna do all topics it about 50 topics in one of your vids so 1 each day about a few hours a day then after 50 topics I will make myself a test on all questions and it’ll be out of 100 and I will do that every 2 days so 1 day to make the test ten next to do it for about 2 Months and I can be very smart

@minalhq5762 3 года назад

good luck lmao

@Sophia-ok4ce 2 года назад

Did u do it

@rah7317 2 года назад

Did it work?

@tamtam3290 Год назад

Let's go James

@fullc0de Год назад

Great explanation! Very helpful.

@Bannapickleonion Год назад

HOW IS 3 MACHINES BEING USED IS 3 DAYS OF WORK WOULDNT I DO 72/3 TO GIVE ME 24 DAYS OF WORK

@michaelaa162 9 месяцев назад

literally what i thoght

@STATIONARY742 4 месяца назад

i love this video and i understand it a bit now but i am quite stumped on the question after 6:50. can anyone help pls??!

@ByfronBypassedScripts 3 месяца назад

so the first step is always to times the top two numbers which are 8 and 9, so times them together and u will get 72, u pretty much got 1 mark for that so thats good, then after, it says on the first day, 3 machines are used, so u do 1 day = 3 machines 2 day = 6 machines it only goes up to 2 days, so u add both of them which gives u 9 machines, thats 3 marks uve got so its alr if u dont understand the next bit, so after what u do is, you take that number that u added which is 9 and then you do 72 subtract 9 and ye

@STATIONARY742 3 месяца назад

@@ByfronBypassedScripts thx for helping me and writing a whole flipping paragraph.. Bless u🤩👍🤓😅😀😁

@Mathspaperks1ks2 2 года назад

113k subscriptions and growing woooowww!!

@TheGCSEMathsTutor 2 года назад

Thank you 😁🙏🏼

@percyjackson8325 4 года назад

Thanks a lot sir,these are exactly the type of questions that come in the exam.😊😊

@TheGCSEMathsTutor 4 года назад

Percy Jackson My pleasure!! 😁🙏🏼

@percyjackson8325 4 года назад

Wow!!gcse maths tutor -u responded to my comment 2 minutes after!!

@TheGCSEMathsTutor 4 года назад

Percy Jackson I try my best! 😁🙏🏼

@littlechineseladyv2517 3 года назад

@@percyjackson8325 gay

@mdazizulchowdhury8883 2 года назад

@@littlechineseladyv2517 lol

@deeshapatel4809 2 года назад

this made it so easy ur so smart

@TheGCSEMathsTutor 2 года назад

So glad to hear it helped! 😁🙏🏼

@steamstrategy7670 2 года назад

@@TheGCSEMathsTutor Hello sir, when should I use inverse proportion as I use ratio instead for example in the first question I do 10:4 8:x and then cross multiply.

@Dz-nn9gt Год назад

I dont understand the WHY for the last few qs

@Glowdits Год назад

same i know so damn confusing

@_angeell Год назад

@@Glowdits i hate this topic so much omds i always get it wrong

@Glowdits Год назад

@@_angeell yeh flying angel

@madinahussain8186 3 года назад

8:23 the second day= 6 machines not 6 days, does this affect the answer?

@charlotteennis885 3 года назад

1st day does 3 days of work as there are 3 machines 2nd day does 6 days of work as there are 6 machines

@teddynam5391 2 года назад

Thanx a lot maths tutor!

@Kamile7899 7 месяцев назад

Thank you so much you are a god send ❤❤

@lennyhare9609 4 месяца назад

Thanks!

@solo3976 Год назад

I see this coming up this in next week's exams tbh

@prodls3993 Год назад

fr i predict its coming

@inaya8834 2 года назад

How do you know whether it is inverse or direct context?

@yourlocalpostman 2 года назад

with inverse, the question would most likely ask you to work out "how long would x take in y time" whereas with direct it's likely related to money/weight. Also for inverse, as one variable increases, the other decreases. In contrast, with direct proportion, as one increases the other also increases (and vice versa)

@jaidevtejpal6653 Год назад

Intro is elite icl

@calcpost3641 3 года назад

Sir i am a little confused, why did you half 12 to get 6 days ? at this time 8:21

@charlotteennis885 3 года назад

He didn't half it as it was 6 machines only on the one day not two days (second day), if he said the next two days he would times it by two to make 12 1st day does 3 days of work as there are 3 machines 2nd day does 6 days of work as there are 6 machines

@calcpost3641 3 года назад

@@charlotteennis885 Thank you so much, I appreciate it : )