0 votes 0 votes The average age of a teacher and $25$ students is $17$ years. If the teacher’s age is excluded, the average reduces by $2$ years. The age of the teacher is : $63$ years $65$ years $67$ years $69$ years Quantitative Aptitude nielit2022feb-scientistc average + – Lakshman Bhaiya asked Jul 21, 2022 • retagged Jul 16, 2023 by Hira Thakur Lakshman Bhaiya 13.7k points 500 views answer comment Share See all 0 reply Please log in or register to add a comment.
0 votes 0 votes the average age of teachers +$25$ students=$17*26=442$ The average age of $25$ students=$25*15=375$ So the age of the teacher =$442-375=67$ year Option $(C)$ is correct. Hira Thakur answered Jul 16, 2023 Hira Thakur 7.2k points comment Share See all 0 reply Please log in or register to add a comment.