Answer :
Thank you for getting in touch with us for the answer of your query. In order to find the average, firstly we need to find the total age of all students, which can be find from the following formula:
average age = total age of all students / number of students
15 = Total age of all students / 16
Total age of students = 16 x 15 = 240
Excluding the boy aged 18 the number of students and will be 15 and total age of all students will be 240 - 18 = 222
Average age of students will be 222/15 = 14.8
average age = total age of all students / number of students
15 = Total age of all students / 16
Total age of students = 16 x 15 = 240
Excluding the boy aged 18 the number of students and will be 15 and total age of all students will be 240 - 18 = 222
Average age of students will be 222/15 = 14.8