Harder GCSE ratio problem questions including combining ratios, converting ratios to fractions solving problems using ratio. For the full list of videos and more revision resources visit www.mathsgenie.co.uk
It's embarrassing to say this but I've been struggling with ratios since yr 5 and after watching this video I finally understand so thank you so much :)
i've been stuck on ratios for years now. give me quadratics, trig, 3d horrible things, i can do it. but ratios!! i didn't understand. this helped soo much though and finally i think i can do them!
thanks, this helped me remember how do these questions for my mock tomorrow :) the way my school taught us to do these questions was to put them in a table. for example with the first question R:G=3:2 and G:Y=5:2. you'd do: R : G : Y 3 : 2 5 : 2 you'd then just do 2x5, then times the other two rows as the opposite numbers. ie, 3x5 and 2x2
HI, its a very helpful video i learnt a lot from it..and now i am 100% confident to solve difficult questions of ratio...please carry on this beneficial work and help the students.God bless you.
am not even joking 5 mins before my igcse i watched this and the first question was the exact format as the video . thank you so so much you saved my exams
On god uve saved me for my mock tmrw. Ratios are the one topic I struggle with but ur explaination is so clear. I fully understand them now. Thx mann 🤝
How can I approach this Two identical jug each contains some juice * ratio of juice in 1st jug to juice in 2nd jug 5:3 * If mo pours 170ml juice from 2nd jug to 1st jug then jug would be full * Instead he pours 630ml juice from 1st jug to 2nd jug then jug would be full * What is the capacity of each jug
Hi maybe its a bit late but i watched the video and i have a super important question to ask straight lines where we are finding the ratio there is a part where you subtract and i dont quite understand why and where the subtraction comes from please explain🙏
Fr like why do you need to combine them and then.... Like we need the context to apply it to a exam question Exam questions have several topics combined like Like this question could come up combined with I dunno pythagoras theory If we don't know the context it's harder to apply it into questions cause we don't know what we would do because here we don't know why we're doing it 😢
Yeah it is - I have a set of GCSE videos that I made 4/5 years ago and a set that I made this year. I need to decide which old videos to replace - but there doesn't really seem to be an old video covering this properly so I will get it up now.
How do you answer a question like this " £60 pocket money is split between three people. Sally gets twice the amount of Rob and Malik gets three times more than Rob. How much money does each person get?" Please please please somebody help
To answer this and similar questions, first find the smallest amount someone has (R=Rob by the way). The smallest amount is R, which can be represented on a diagram by one portion. If Sally gets 2 portions and Malik gets 3 portions, the ratio of Sally:Rob:Malik is 2:1:3. When you add up the numbers in the ratio, (2+1+3), it is equal to 6. When you divide the total amount of money by this number, (60/6) you get the amount of money in one portion, or in this case, 10. So Rob has £10, meaning that Sally has £20 and Malik has £30. Hope this helped :)
@@ameliadoudou How do you know that Rob is the smallest amount, and how do you know sally and malik are 2 and 3? Thank you so much for answering btw, I partially understand
@@arancienne well we dont know Robs amount so think of it as x. if sally is getting TWICE the amount of robs (which is x) she gets 2x. Malik gets THREE times as much as Rob so he gets 3x. now since it sums to £60, x + 2x + 3x should equal £60. add the like terms, 6x=60. do some algebra to get x on its own, in which u divide by 6 on both sides.60 divide by 6 equals 10. this means X is 10. now sub in x into our original equations. Rob = x so he gets 10. Sally is 2x (do 2 times x) 2x10 = £20. Lastly Malik is 3x so we do 3x10 (since 10 is x lol) and he gets £30. therefore, Rob get £10, Sally gets £20 and Malik gets £30. to double check our answer, do 10+20+30 and it equals £60 means its correct.
Basically, he was trying to add the fractions up to 1 because idk why. but 1- 41/70 had to give you 29/70 which is the rest of the journey. I know the explanation is shit but yh.
49 shapes at 4:3 gives 28 red shapes and 21 green. of the 28 red shapes, there are 20 circles and 8 squares (ratio 5:2). I think this means that the overall proportion of red circles is 20 over 49.
