Question
When is mean, median and mode identical.

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| Units Sold | Total Revenue (₹) | Average Revenue (₹) | Marginal Revenue (₹) |
| 1 | 10 | ||
| 2 | 24 | ||
| 3 | 33 | ||
| 4 | 40 | ||
| 5 | 40 | ||
| 6 | 36 | ||
| 7 | 28 |
| Consumption (Units) | Total Utility (Utils) | Marginal Utility (Utils) |
| 1 | 10 | 10 |
| 2 | 18 | 8 |
| 3 | 25 | 7 |
| 4 | 31 | 6 |
| 5 | 34 | 3 |
| 6 | 34 | 0 |