Multiple Choice Questions on Out of three numbers the first is twice the second and three times the third The average of the thre........... for CDS Exam Preparation

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Multiple Choice Questions

Out of three numbers the first is twice the second and three times the third The average of the thre...........

Quantitative Aptitude (CDS) Average
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    Out of three numbers, the first is twice the second and three times the third. The average of the three numbers is 88. The smallest number is?

    58

    Incorrect Answer

    48

    Correct Answer

    38

    Incorrect Answer

    68

    Incorrect Answer
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    Explanation:

    first is twice the second
     let first is x , second is y and third=z
     x=2y
     x=3z
     average=(x+y+z)/3
     88 =(x+x/2 +x/3)/3
     (88 )(3)=(6x+3x+2x)/6
     (88) (3)( 6)=11x
     x=144
     smallest number is z=144/3
     =48

    By: bhavesh kumar singh
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