| No | Description | Difficulty | Syllabus | Level | |
|---|---|---|---|---|---|
| 1 | a le ((a+b)x+(a+c)) le (a+d); WI | Easy | GCSE | Higher | Related material |
| 2 | ar+b sign cr+d, a-c gt 0; MC | Intermediate | GCSE | Higher | Related material |
| 3 | ar+b sign cr+d, a-c gt 0; RWI | Intermediate | GCSE | Higher | Related material |
| 4 | ar+b sign cr+d, a-c lt 0; MC | Intermediate | GCSE | Higher | Related material |
| 5 | ar+b sign cr+d, a-c lt 0; RWI | Intermediate | GCSE | Higher | Related material |
| 6 | ar+b sign d, a gt 0; RWI | Intermediate | GCSE | Higher | Related material |
| 7 | ar+b sign d, alt 0; RWI | Intermediate | GCSE | Higher | Related material |