Question
Identify the following as extension, contraction, increase or decrease in demand.
| Price (₹) | Demand (units) |
| 10 | 20 |
| 12 | 15 |
| Price (₹) | Demand (units) |
| 10 | 20 |
| 10 | 15 |
| Price (₹) | Demand (units) |
| 12 | 15 |
| 10 | 20 |
| Price (₹) | Demand (units) |
| 10 | 20 |
| 10 | 30 |