Question

The average age of a class of 40
boys is 11.95 years. The average of
the class is raised to 12 years by the
coming of a new boy. How old is this
new boy?​

Answer 1

Answer:

41*12-40*11.95=14

Step-by-step explanation:

Earlier 40 students,total age= 40*11.95=478

New no of students 41,total age= 41*12=492

age of new student is=492-478=14