Match the method of mining with strength of orebody, type of support and orebody geometry.
| Strength | Support | Geometry | Method |
|---|---|---|---|
| P. Strong | L. Unsupported | X. Tabular and steep | 1. Cut-and-fill |
| Q. Moderate | M. Artificially supported | Y. Tabular and flat | 2. Block caving |
| R. Weak | N. Self-supporting | Z. Massive and steep | 3. Room and Pillar |
P-M-X-3, Q-N-Z-2, R-L-Y-1
P-L-X-1, Q-N-Z-3, R-M-Y-2
P-N-Y-3, Q-M-X-1, R-L-Z-2
P-L-Z-1, Q-N-Y-3, R-M-X-2
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