The average age of 8 men increases by 4 years when one of them whose age is 30 years is replaced by a new man. What is the age of new man?
Question and options
The average age of 8 men increases by 4 years when one of them whose age is 30 years is replaced by a new man. What is the age of new man?
- 55 years
- 62 years
- 42 years
- 69 years
Answer and explanation
Correct answer: B - 62 years
Total age rises by 8 x 4 = 32 years, so new man = 30 + 32 = 62 years.
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