Exemplar Questions
| 1. | Solve the following I Difficulty: medium | 
                                    
                                    4
                                 | 
| 2. | Solve the following II Difficulty: medium | 
                                    
                                    4
                                 | 
| 3. | Solve the following III Difficulty: medium | 
                                    
                                    2
                                 |