This deep dive covers Advanced: Ratio Problems within Ratio Basics for GCSE Mathematics. Revise Ratio Basics in Number for GCSE Mathematics with 12 exam-style questions and 22 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 12 of 14 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 12 of 14
Practice
12 questions
Recall
22 flashcards
Advanced: Ratio Problems
Complex ratio problems often involve:
- Changing ratios: If ratio changes from 3:4 to 5:6, find new amounts
- Combined ratios: If A:B = 2:3 and B:C = 4:5, find A:B:C
- Reverse problems: Given difference and ratio, find original amounts
Example: If A:B = 2:3 and B:C = 4:5
Make B the same: A:B = 8:12 and B:C = 12:15
Therefore A:B:C = 8:12:15