Multiple Choice Questions on If three numbers are in the ratio 2 3 5 and the twice their sum is 100 Find the square of the larges........... for RRB(NTPC) Exam Preparation

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Multiple Choice Questions

If three numbers are in the ratio 2 3 5 and the twice their sum is 100 Find the square of the larges...........

Quantitative Aptitude (RRB NTPC) Ratio, Proportion
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    If three numbers are in the ratio 2:3:5 and the twice their sum is 100. Find the square of the largest of the three numbers. 

    225

    Incorrect Answer

    625

    Correct Answer

    25

    Incorrect Answer

    100

    Incorrect Answer
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    Explanation:
    = 2(2x+3x+5x)=100
    20x=100
    x=5
     ∴ square of largest number  
    (5x)^2 = (25)^2=625       

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