MCQOPTIONS
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| 1. |
The ratio of minimum compressive strength on 15 cm cubes prepared with the concrete of M 20 grade and M 40 grade, at 7 days should be at least |
| A. | 43525 |
| B. | 43497 |
| C. | 43499 |
| D. | 2 |
| Answer» C. 43499 | |