Multiple Choice Questions on The cost of a silver coin varies directly to its thickness and the square of the diameter If the rat........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

The cost of a silver coin varies directly to its thickness and the square of the diameter If the rat...........

Quantitative Aptitude ( CCS) Ratio, Proportion
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    The cost of a silver coin varies directly to its thickness and the square of the diameter. If the ratio of diameters of two coins is 4:3 and that of their cost is 4:1. Find ratio of their thicknesses.

    8:5

    Incorrect Answer

    4:5

    Incorrect Answer

    9:4

    Correct Answer

    7:6

    Incorrect Answer
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    Explanation:

    according to question
    =>16X/9Y=4/1
    =>X:Y=9:4

    By: MIRZA SADDAM HUSSAIN
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