-- advertisement --

Discussion

  1. The average age of 24 students in a class is 10. If the teacher’s age is included, the average increase by one . The age of the teacher is ?
    1. 25 year
    2. 30 year
    3. 35 year
    4. 40 year
  1. Correct Option: C

    Age of the teacher = Sum of age of 24 students and teacher - Sum of age of 24 students.
    = 25 x 11 - 24 x 10
    = 35 years.
    ∴ Age of teacher = 35 years.


Your comments will be displayed only after manual approval.

-- advertisement --

-- advertisement --