How to calculate ratio - sharing money GCSE question grade 4

@3minutemaths for quick reminder 3 minute maths videos - and GCSE walkthrough - to help you with your revision.


This video is all about ratio and forms part of the playlist on how to work with ratios. The question is around grade 4 GCSE maths, and is fairly typical of the types of questions you'll be asked to answer:

Sarah works as a waitress. Each week she splits her wage into spending money and savings in the ratio 7 : 3.

a. One week, Sarah earns £130. How much should she put in her savings?

b. The next week, Sarah put £42 into her savings. How much did she earn in total that week?

It should be straightforward if you follow the steps, and work down the page. I hope the video helps and please do leave a comment - thanks!


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The course contains around 3 hours of video, quizzes and a copy of my book 'How to get an A in maths.' All the way through to GCSE and just in time for revision.


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Here's a link to a practice Edexcel GCSE maths paper:

GCSE - everything you need to know to get great grades

How to solve linear equations

.. and many more.

[jeansmohammed]

I'm not doing ratio at the moment
But this is extremely useful to know