The average age of 14 girls and their teacher’s age is 15 years. If the teache

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The average age of 14 girls and their teacher’s age is 15 years. If the teacher’s age is excluded, the average reduces by 1. What is the teacher’s age?

Options:

A . 32 years

B . 35 years

C . 29 years

D . 30 years

Answer: Option C
Answer: (c)Total age of 14 girls + 1 teacher = 15 × 15 = 225 yrs. Average age of 14 girls = 14 yrs. ∴ Total age of 14 girls = 14 × 14 = 196 yrs. ∴ Teacher’s age = 225 – 196 = 29 yrs.

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