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Discussion :: Building Materials

  1. The percentage of alumina in a good brick earth lies between

    2. A.

     5 to 10 %
    B.

     20 to 30 %
    C.

     50 to 60 %
    D.

     70 to 80 %

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    Workspace

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    Answer : Option B

    Explanation :

    Explanation Not Provided

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