Multiple Choice Questions on If three numbers are in the ratio of 4 5 7 and their total is 320 then find the total of the smalles........... for RRB(NTPC) Exam Preparation

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Multiple Choice Questions

If three numbers are in the ratio of 4 5 7 and their total is 320 then find the total of the smalles...........

Quantitative Aptitude (RRB NTPC) Ratio, Proportion
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    If three numbers are in the ratio of 4 : 5 : 7 and their total is 320, then find the total of the smallest and the largest number.

    140

    Incorrect Answer

    220

    Correct Answer

    240

    Incorrect Answer

    180

    Incorrect Answer
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    Explanation:

    Let the three numbers be 4x, 5x and 7x
    Sum of three numbers = 4x + 5x + 7x = 16x = 320
    Therefore, x = 20
    the total of the smallest and the largest
    number = 4x + 7x = 11x = 220

    By: Barka Mirza
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