Question

The average age of 24 students in

a class is 10. If the teacher’s age is

included, the average increases by

one. The age of the teacher is​

Answer 1

Answer:

35

Step-by-step explanation:

Average = total of all observations/ Number of observations.

Average age of 24 students = 10

=> Total Age of 24 students = 24 * 10 = 240.

Average age of 24 students + 1 teacher = 11

=> Total age of 24 students + 1 teacher = 275

Age of teacher =  (Total age of            -  (Total Age of

                             24 students +               24 students)

                              1 teacher )      

                           = 275 - 240

                           = 35.          

                                                                                                students