Compound ratios (a:b, b:c, a:c)

This type of activity is known as Practice. Please read the guidance notes here, where you will find useful information for running these types of activities with your students.

1. Example-Problem Pair

2. Intelligent Practice

3. Answers

4. Downloadable version

5. Alternative versions

The following activity was shared by @ElysianMaths as a way to help their Year 11s who struggled with this topic in their exam. It might make a nice follow-up activity after the completion of this sequence of questions:

  • feel free to create and share an alternate version that worked well for your class following the guidance here