The average age of 30 students in a class is 12 years. The average – McqOptions

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1.	The average age of 30 students in a class is 12 years. The average age of a group of 5 of the students is 10 years and that of another group of 5 them is 14 years. The average age of the remaining stu
A.	10
B.	12
C.	14
D.	16
Answer» C. 14

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