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  1. The ratio of two numbers is 2:3 and the sum of their cubes is 945. The difference of number is?
    2. A.
    3
    B.
    4
    C.
    5
    D.
    6

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    Answer : Option A

    Explanation :

    2x   3x

    8x cube + 27x cube = 945

    35x cube = 945

    x cube = 27 => x = 3

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