The ratio of minimum compressive strength on 15 cm cubes prepared with – 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

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