| No | Description | Difficulty | Syllabus | Level | |
|---|---|---|---|---|---|
| 1 | Number of ways of choosing a team or x men & y women from a group; RNI | Intermediate | A-Level | S1 | Related material |
| 2 | Number of ways of choosing balls from a bag with at least one red; RNI | Intermediate | A-Level | S1 | Related material |
| 3 | Number of ways of choosing balls from a bag with at least two red; RNI | Intermediate | A-Level | S1 | Related material |
| 4 | Number of ways of choosing balls from a bag with at most one red; RNI | Intermediate | A-Level | S1 | Related material |
| 5 | Number of ways of choosing balls from a bag with at most two red; RNI | Intermediate | A-Level | S1 | Related material |
| 6 | Number of ways of choosing balls from a bag with two the same colour; RNI | Intermediate | A-Level | S1 | Related material |
| 7 | Number of ways of choosing objects from a group; RNI | Easy | A-Level | S1 | Related material |