| No | Description | Difficulty | Syllabus | Level | |
|---|---|---|---|---|---|
| 1 | 3 Industrial flow, find matrix of technical coefficients, elements not shown; 2NI; | Intermediate | Undergraduate | Level1 | Related material |
| 2 | 3 Industrial flow, find matrix of technical coefficients, elements shown; 2NI; | Intermediate | Undergraduate | Level1 | Related material |
| 3 | n Industrial flow, find matrix of technical coefficients, elements not shown; 2NI; | Intermediate | Undergraduate | Level1 | Related material |
| 4 | n Industrial flow, find matrix of technical coefficients, elements shown; 2NI; | Intermediate | Undergraduate | Level1 | Related material |