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  1. The maximum compressive strength on 15 cm cubes of M 20 grade concrete at 7 days, should be a minimum of

    2. A.
    7 N/mm2
    B.
    10 N/mm2
    C.
    15 N/mm2
    D.
    20 N/mm2

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    Workspace

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    Answer : Option B

    Explanation :

    No answer description available for this question. Let us discuss.

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