Question : The average age of 30 employees in an organisation is 25 years. If 2 new employees with an average age of 41 years join the organisation, then find the new average age of all the employees in the organisation.
Option 1: 26 years
Option 2: 25 years
Option 3: 23 years
Option 4: 24 years
Correct Answer: 26 years
Solution :
The average age of 30 employees in an organisation = 25 years
Sum of ages of 30 employees = 25 × 30 = 750 years
The average age of 2 new employees = 41 years
Sum of ages of 2 new employees = 2 × 41 = 82 years
Sum of ages of 32 employees = 750 + 82 = 832 years
New average age of 32 employees = $\frac{832}{32}$ = 26 years
Hence, the correct answer is 26 years.
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