Multiple Choice Questions on Average age of employees working in a department is 30 years In the next year ten workers will........... for Combined Bank PO and Clerical Exams Preparation

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Multiple Choice Questions

Average age of employees working in a department is 30 years In the next year ten workers will...........

Logical Reasoning(Banking) Data Sufficiency
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    Average age of employees working in a department is 30 years. In the next year, ten workers will retire. What will be the average age in the next year?

    Retirement age is 60 years.

    There are 50 employees in the department.

               

    I. 

     II. 
     
     
     
     
     
     

    II alone sufficient while I alone not sufficient to answer 

    Incorrect Answer

    Either I or II alone sufficient to answer 

    Incorrect Answer

    Both I and II are not sufficient to answer 

    Incorrect Answer

    Both I and II are necessary to answer

    Correct Answer
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    Explanation:

    I. Retirement age is 60 years.

    II. There are 50 employees in the department.

    Average age of 50 employees = 30 years.

    Total age of 50 employees = (50 x 30) years = 1500 years.

    Number of employees next year = 40.

    Total age of 40 employees next year (1500 + 40 - 60 x 10) = 940.

    Average age next year = 940 years = 23 1 years.
    40 2

    Thus, I and II together give the answer. So, correct answer is (4).

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