Multiple Choice Questions on A wheel that has 6 cogs is meshed with a larger wheel of 14 cogs When the smaller wheel has made 21 ........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A wheel that has 6 cogs is meshed with a larger wheel of 14 cogs When the smaller wheel has made 21 ...........

Quantitative Aptitude ( CCS) Ratio, Proportion
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    A wheel that has 6 cogs is meshed with a larger wheel of 14 cogs. When the smaller wheel has made 21 revolutions, then the number of revolutions made by the larger wheel is ?

    11

    Incorrect Answer

    7

    Incorrect Answer

    9

    Correct Answer

    13

    Incorrect Answer
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    Explanation:

    Here the number of cogs is inveresly proportional to number of revolutions

    => More cogs less revolution
    => 6 : 14 :: x : 21
    => (21x6)/14 = 9

    Hence, option 3 is the correct answer.

    By: Amit Kumar
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