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1. |
Approximately how many hours it will take for a concrete batching and mixing plant of rated capacity 120 cum/h and working at an efficiency of 80% to produce concrete required for a base slab of 1920 cum? |
A. | 16.0 |
B. | 12.8 |
C. | 160.0 |
D. | 16.4 |
E. | 20.0 |
Answer» F. | |