Ratio and Proportion — Class 9 Maharashtra SSC Mathematics revision notes
A 4-page visual revision sheet for Ratio and Proportion, written for Class 9 Maharashtra SSC Mathematics. Formulas, diagrams and the traps that cost marks, laid out to be read the night before rather than the term before. Free, and it opens inside CapCompass.
What this Ratio and Proportion sheet covers
- Ratio
- Antecedent
- Consequent
- Ratio, and the rules it obeys
- Proportion
- Mean proportional
- Continued proportion
- Proportion, and the means and extremes
- Operations that preserve a proportion
- the basic property, cross multiplication
- invertendo, turn both sides over
- alternendo, swap the means
- componendo, add one to each side
- dividendo, subtract one from each side
- componendo and dividendo together
- Splitting an amount in a given ratio
- The sum of parts method
- Componendo and dividendo in action
- Ratios of more than two quantities
- The two ways quantities vary together
- Direct
- Inverse
- Terms in this chapter
- Traps that cost marks
- Tricks that save time
How CapCompass uses this sheet
These notes are not a standalone PDF. CapCompass plans Mathematics chapter by chapter against your real exam dates and free hours, and when the plan reaches Ratio and Proportion the sheet opens inside the study block itself — at the page covering the sub-topic that block is on, with the timer still running. Revision arrives at the moment the plan says revise, instead of having to be gone looking for.