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Out of 10 teachers of a school, one teacher retires and at his place a new teacher of age 25 years joins. As a result of it, the average age of the teachers is reduced by 3 years. The age of the retired teacher is
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- 60 years
- 58 years
- 56 years
- 55 years
- 60 years
Correct Option: D
According to question ,
The average age is reduced by 3 years.
∴ Age of the retired teacher = 25 + 3 × 10
Age of the retired teacher = 55 years
