Multiple Choice Questions on The average of x y and z is 30 and the average of x and y is 20 What is the value of z ........ for CAPF (AC) Exam Preparation

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Multiple Choice Questions

The average of x y and z is 30 and the average of x and y is 20 What is the value of z ........

Quantitative Aptitude( Paper-I ) Average
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    The average of x, y and z is 30, and the average of x and y is 20. What is the value of z?

    10

    Incorrect Answer

    20

    Incorrect Answer

    40

    Incorrect Answer

    50

    Correct Answer
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    Explanation:

    Total sum of xyz=30*3
    Total sum of xy=20*2
    So value of Z= 30*3-20*2=50

    By: MIRZA SADDAM HUSSAIN
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