If the average age of three classes A, B and C having number of students 24, 40 and 32 is 22, 26 and 29 respectively, then find the average age of all three classes.
Answer & explanation
Correct answer: option 1
If the average age of three classes A, B and C having number of students 24, 40 and 32 is 22, 26 and 29 respectively, then find the average age of all three classes.
Correct answer: option 1