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The average age of 24 boys and the teacher is 15 years. When teacher's age is excluded, the average decreases by 1. What is the age of the teacher?

A) 38 years
B) 39 years
C) 40 years
D) 36 years

Correct Answer:


B) 39 years

Description for Correct answer:
Age of the teacher = \( \Large \left(25 \times 15 - 24 \times 14\right) years \)

\( \Large \left(375 - 336\right) years = 39 years \)

Part of solved Average questions and answers : >> Aptitude >> Average

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