Multiple Choice Questions on A number x equal 80 of the average of 5 7 14 and a number y If the average of x and y is 26 th........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A number x equal 80 of the average of 5 7 14 and a number y If the average of x and y is 26 th...........

Quantitative Aptitude ( CCS) Average
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     A number x equal 80% of the average of 5, 7, 14 and a number y. If the average of x and y is 26, the value of y is ?

    13

    Incorrect Answer

    26

    Incorrect Answer

    39

    Correct Answer

    None of these

    Incorrect Answer
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    Explanation:

    x = 80% × (5+7+14+y)/4

    After Solving:-

    5x - y = 26 ----------> (i)

    and (x + y)/2 = 26

    => x + y = 52 ----> (ii)

    By Solving (i) and (ii):-

    x = 13 and y = 39

    By: Deepak Dawra
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