

MCQOPTIONS
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1. |
The ratio of minimum compressive strength on 15 cm cubes prepared with the concrete of 20 grade and 40 grade, at 7 days should be at least |
A. | 1/3 |
B. | 1/2 |
C. | 3/2 |
D. | 2.0 |
Answer» C. 3/2 | |