Latest IBM Aptitude Question SOLUTION: 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? I. Retirement age is 60 year

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(#M40005542) IBM Numerical Ability question problems on ages Keep an EYE

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?
I. Retirement age is 60 years.
II.There are 50 employees in the department.

A. I alone sufficient while II alone not sufficient to answer
B. II alone sufficient while I alone not sufficient to answer
C. Either I or II alone sufficient to answer
D. Both I and II are not sufficient to answer
E. Both I and II are necessary to answer

Solution

Let total number of employees = x
so total age = 30x
in the next year total age = 31x
let the age of retirement = y
so new avg = (31x-10y)/(x-10)
for finding new avg x and y both are required

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Asked In IBM (12 years ago)

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