These videos deal with ratio – GCSE exam questions and are aimed at around grade 3, although they can be a little challenging. There's quite a lot of words, and it's good to try to ‘sketch’ out the question to help with understanding.

Here's the questions for video 1:

1. Write each of these ratios in their simplest form:

a. 4 : 6

b.15 : 21

c. 72 : 45

d. 24cm : 36cm

e. 350g : 2kg

f. 42p : £1.36

2. To make grey paint, black and white are mixed in the ratio 5 : 3. How much black would be needed with:

a. 6 litres of white?

b. 12 litres of white?

c. 21 litres of white?

3. To make salad dressing you mix olive oil and vinegar in the ratio 5 : 2. How much olive oil is needed with:

a. 10ml of vinegar?

b. 30ml of vinegar?

c. 42ml of vinegar?

4. 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?

5. The ratio of men to women at a football match is 11 : 4. How many men were there if there are:

a. 2000 women?

b. 8460 women?

6. Divide £75 in the ratio 2:3

7. Divide £255 in the ratio 2:5:8

Here's the timestamps:

0:00 Intro

0:55 Question 1

3:10 Question 2

5:00 Question 3

6:35 Question 4

8:45 Question 5

10:20 Question 6

11:05 Question 7

Here's the questions for video 2:

8. Arni, Bethany and Carrie save some money in the ratio 3:4:9. Carrie saved £150 more than Bethany.

a. Show that Arni saved £90

b. Show that the total amount of money saved is £480

9. 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.

10. 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?

Here's the timestamps:

0:00 Intro

0:38 Question 8

3.20 Question 9

4:43 Question 10

Here's a link to the questions: QT – Ratio GCSE exam questions

and here's the answer paper: QT Ratio GCSE exam questions – ANSWERS

These types of questions appear in all the main GCSE exam boards – Edexcel, AQA, OCR and Educas.

**Top Tips!**

- Always try to work down the page
- Remember that ratios can be multiplied or divided only, to get their equivalent
- Try to find the number of ‘parts’

Here's a post that also might be of interest:

Ratio; GCSE maths higher tier questions

Working with Ratio; GCSE maths real life questions on ratios

How to calculate ratio in ‘more than’ questions; grade 4 GCSE maths

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.

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