The average age of the boys in a class is 16 years and that of the girls is 15 years. The average age for the whole class is :
Solution
Correct Answer: Option D
Clearly, to find the average, we ought to know the number of boys, girls or students in the class, neither of which has been given.
So, the data provided is inadequate.
Practice More Questions on Our App!
Download our app for free and access thousands of MCQ questions with detailed solutions