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The average age of 14 students is 14 years. if the age of the teacher is added the average increase by 1. What is the age of the teacher?

A32 years

B30 years

C28 years

D29 years

Answer:

D. 29 years

Read Explanation:

The total age of 14 students = (14 × 14) = 196 The total age of 15 students and teacher = (15 × 15) = 225 Age of the teacher = (225 – 196) ⇒ 29 years


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