This video is all about how to calculate ratio in ‘more than’ questions and is aimed at around grade 4 GCSE maths.
These are a little more challenging, and involve the ‘more than’ type of questions. Here’s three different questions for you to try:
Arni, Bethany and Carrie save some money in the ratio 3:4:9. Carrie saved £150 more than Bethany. Show that Arni saved £90. Show that the total amount of money saved is £480.
Brass is made from copper and zinc. The ratio of the weight of copper to the weight of zinc is 3:4. Simon made 24.5g of brass. Calculate the weight of copper that Simon used.
Carrie and Josh shared some money in the ratio of 2:7. Josh received £30 more than Carrie. How much money did they each receive?
How to calculate ratio in ‘more than’ questions appear in all the main examination boards, including Edexcel, AQA and OCR. They are popular and, once you have the basic principles, fairly similar. Please do stop the video, try the question and compare your solution.
If you would like to find out more try these:
Working with Ratio GCSE Mathematics
Please do leave a comment below if you are not sure. Alternately you can view my YouTube channel and leave a comment there – I’ll always try to respond as quickly as possible.