Visit http://www.3minutemaths.co.uk for quick reminder High School GCSE mathematics videos.
This video is all about how to work out a reverse percentage and forms part of the playlist reverse percentages.
This video is part b of the question that deals with a 4% increase and working out the original price. In this question the price of a rail ticket is £2828.80 after a 4% increase – we’re asked to calculate the original price. The easiest way is to convert the percentage to a decimal and then use algebra to work through.
I hope the video helps and please do leave a comment – thanks!
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Visit playlists to help you get more from your studies
3 minute quick reminder math – get extra exam credit https://www.youtube.com/playlist?list=PLPglScc3TJ-PNLVPT1tSkog9EaSRL5_tx
GCSE – everything you need to know to get great grades
How to solve linear equations
.. and many more.
‘How to get an A in maths’ is now available on Amazon and packed full of hints, tips and techniques to help you get the very best from your studies. Or, first chapter FREE on my website http://www.3minutemaths.co.uk – real maths, tips and techniques.
http://www.3minutemaths.co.uk is full GCSE past papers, questions by topic and hints and tips to help you get the very best from your studies.
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Also see: Working Out Percentages
The post How to work out a reverse percentage – GCSE maths question 7b appeared first on Verandi.org.
source http://verandi.org/how-to-work-out-a-reverse-percentage-gcse-maths-question-7b/
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