Multiple Choice Questions on Three numbers are in the ratio 3 4 5 The sum of the largest and the smallest equals the sum of the t........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

Three numbers are in the ratio 3 4 5 The sum of the largest and the smallest equals the sum of the t...........

Quantitative Aptitude ( CCS) Ratio, Proportion
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    Three numbers are in the ratio 3 : 4 : 5. The sum of the largest and the smallest equals the sum of the third and 52. The smallest number is

    20

    Incorrect Answer

    27

    Incorrect Answer

    39

    Correct Answer

    52

    Incorrect Answer
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    Explanation:

    The numbers are 3n,4n and 5n
    We just need to find whether 3,4,5 or 6,8,10, or 9,12,15 etc
    So 3n +5n= 4n+52
    Simplify 
    8n=4n+52
    Solve 
    4n=52
    n=13
    The 3 numbers are 39:52:65

    Hence, option 3 is the correct answer.

    By: Amit Kumar
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