Problem on Ages - Quantitative Aptitude (MCQ) questions for Q. 28554

Q.  The average age of 10 students and their teacher is 15 years. The average age of the first seven students is 15 yr and that of the last three is 11 yr. What is the teacher's age?
- Published on 15 Mar 17

a. 33 years
b. 30 years
c. 27 years
d. 24 years

ANSWER: 27 years

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