Multiple Choice Questions on The ratio of the volumes of two cubes is 729 1331 What is the ratio of their total surface areas ........ for Mathematics - All Exams Preparation

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Multiple Choice Questions

The ratio of the volumes of two cubes is 729 1331 What is the ratio of their total surface areas ........

Quantitative Aptitude ( CCS) Mensuration 3D
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    The ratio of the volumes of two cubes is 729 : 1331. What is the ratio of their total surface areas?

    71:121

    Incorrect Answer

    81:121

    Correct Answer

    61:121

    Incorrect Answer

    none of these

    Incorrect Answer
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    Explanation:

    Ratio of the sides = ³√729 : ³√1331 = 9 : 11
    Ratio of surface areas = 92 : 112 = 81 : 121

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