DIRECTIONS for the question:Solve the following question and mark the best possible option.
The average age of 80 boys in a class is 15. The average age of a group of 15 boys in the class is 16 and the average age of another 25 boys in the class is 14. What is the average age of the remaining boys in the class?
A)
15.25
B)
14
C)
14.75
D)
Cannot be determined
E)
None of these
A
Required average of 40 students = (Total ages - Total of ages of 15 people - Total age of 25 people)/40