Ratios Quiz
Test your knowledge of Ratios for GCSE Maths, with this quiz.
This quiz consists of 15 questions, including multiple-choice and short-answer questions on the topic of Ratios for GCSE Maths.
For multiple-choice questions, choose the correct answer. Scroll down to begin the quiz.
Questions
Simplify the ratio 12:16.
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Divide £60 in the ratio 2:3. How much does the first person get?
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Which of the following is equivalent to the ratio 5:10?
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A drink is made by mixing orange juice and water in the ratio 1:4. What fraction of the drink is orange juice?
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If a ratio is written as 7:1, what percentage of the total is the first part?
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Divide 40 sweets in the ratio 3:5. How many sweets does the second person get?
Answer: 25
Calculation: 3 + 5 = 8 parts; 40 ÷ 8 = 5; 5 × 5 = 25
Express 2:3 as a fraction.
Answer: ⅖
Explanation: First part is 2 out of 5 parts in total
Simplify the ratio 150:90.
Answer: 5:3
Calculation: Divide both parts by 30
A recipe uses sugar and flour in the ratio 2:5. If you use 200g of sugar, how much flour is needed?
Answer: 500g
Calculation: 2 parts = 200g → 1 part = 100g → 5 parts = 500g
A class has boys and girls in the ratio 3:2. If there are 12 boys, how many girls are there?
Answer: 8
Calculation: 3 parts = 12 → 1 part = 4 → 2 parts = 8
Divide £180 between Ben and Alice in the ratio 4:5. How much does Alice get?
Answer: £100
Calculation: 4 + 5 = 9 parts; £180 ÷ 9 = £20 per part; Alice gets 5 × £20 = £100
Simplify the ratio 0.6:0.9
Answer: 2:3
Calculation: Multiply both parts by 10 → 6:9 → Simplify by 3
If a map scale is 1:50,000, how many kilometres does 3 cm on the map represent in real life?
Answer: 1.5 km
Calculation: 3 cm × 50,000 = 150,000 cm = 1.5 km
The ratio of red to blue marbles is 5:7. If there are 60 marbles in total, how many are red?
Answer: 25
Calculation: 5 + 7 = 12 parts; 60 ÷ 12 = 5; 5 × 5 = 25 red marbles
A solution contains acid and water in the ratio 2:7. If there are 27 litres of solution in total, how much acid is there?
Answer: 6 litres
Calculation: 2 + 7 = 9 parts; 27 ÷ 9 = 3; 2 × 3 = 6 litres of acid
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