Multiple Choice Questions on The average age of x and y is 18 If z is equal to 9 the average of x y and z is ........ for Mathematics - All Exams Preparation

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Multiple Choice Questions

The average age of x and y is 18 If z is equal to 9 the average of x y and z is ........

Quantitative Aptitude ( CCS) Average
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     The average age of x and y is 18. If z is equal to 9, the average of x, y and z is ?

    3

    Incorrect Answer

    9

    Incorrect Answer

    12

    Incorrect Answer

    15

    Correct Answer
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    Explanation:

     X + Y = 36 ; Z =9

    (X + Y + Z)/3 = (36 + 9)/3 = 15

    By: Deepak Dawra
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