Arithmetic
- Number operations
- Ratio and percentage
- Applied arithmetic

Develop RPF Sub-Inspector preparation through arithmetic, reasoning and general-awareness study with regular timed review.
Track accuracy, skipped questions and the time spent on each question group to make practice more informative.
Use a RPF SI practice set to identify your current strengths. Record accuracy and time alongside your score.
Begin with arithmetic or your weakest area. Revisit explanations before repeating a similar set.
Track accuracy, skipped questions and the time spent on each question group to make practice more informative.
Review available programs, their coverage and tutor information in the interactive catalogue.
Open the RPF SI catalogueTrack accuracy, skipped questions and the time spent on each question group to make practice more informative.
Use sectional practice to resolve a specific gap, such as arithmetic. Add full mixed practice once the foundations are familiar, and compare accuracy as well as time across attempts.
Read the product's stated subject coverage, language, access period and practice format. Check whether solutions and review tools are included on its detail page; features vary between products.