MCQOPTIONS
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| 1. |
If the proportions of different ingredients (cement, sand and aggregate) are in the ratio of 1 : 2 : 4, then the grade of concrete is |
| A. | M 10 |
| B. | M 15 |
| C. | M 20 |
| D. | M 25 |
| Answer» C. M 20 | |