If the average age of 40 students in class I is 10 years and the average age of 30 students in Class II is 12 years, find the average age (in years) for all students.A. 11B. 10.54C. 10.58D. 10.85

If the average age of 40 students in class I is 10 years and the avera

1.	If the average age of 40 students in class I is 10 years and the average age of 30 students in Class II is 12 years, find the average age (in years) for all students.A. 11B. 10.54C. 10.58D. 10.85
A.	A
B.	B
C.	D
D.	C
Answer» D. C

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If the average age of 40 students in class I is 10 years and the average age of 30 students in Class II is 12 years, find the average age (in years) for all students.A. 11B. 10.54C. 10.58D. 10.85

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