Q: In a class, the average age of 45 boys is 10 years and the average of 15 girls is 10 years. what is the average age of the whole class?
Options:
(A) 12 Years
(B) 12.3 Years
(C) 10 Years
(D) 13 Years
(E) 15 Years Let's give some random thoughts before answering.
Total age of 60 students
(45X 10+15 X 10) = 630
Average = 600/60 = 10 Years
Therefore, the answer is (C).