Edexcel IGCSE Math A 1.7.E Ratio & Proportion Problems
Practise translating recipes, sharing, scale diagrams and linked quantities into ratios or proportional calculations.
- Syllabus
- First assessment 2018
- Course
- Math A 4MA1
- Level
- Foundation
Exam points
- scale recipes or ingredient lists and identify the limiting quantity
- divide a total in a stated ratio before applying fractions or percentages
- combine linked ratios or proportional statements to find an unknown amount
1.7.E Word problems about ratio and proportion question 1
[Maximum number: 3]
Jess makes salad dressing by mixing lemon juice and olive oil in the ratio 2: 5 by volume. She uses 0.5 litres of lemon juice.
Work out the ratio
cost of lemon juice in the salad dressing : cost of olive oil in the salad dressing Give your ratio in its simplest form.
Cost ratio:
2×13.50:5×18
27:90
3:10
Final answer:
3:10
M1 oe for any multipliers in the ratio 2:5.
A1.
A1 accept 1:3.33… or 0.3:1.
SC B1 for 3:4.
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