Average age of 24 students is 15. If the teacher's age is included the average age increases by 1. Find the age of the teacher.
Question and options
Average age of 24 students is 15. If the teacher's age is included the average age increases by 1. Find the age of the teacher.
- 40 yrs
- 45 yrs
- 24 yrs
- 18 yrs
Answer and explanation
Correct answer: A - 40 yrs
Sum for 24 students = 360. With the teacher, average 16 for 25 people = 400, so the teacher is 40 years.
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CUSAT CAT Integrated IPR Ph.D.
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