The number of students in two classes A and B and the respective “me – McqOptions

MCQOPTIONS

1.	The number of students in two classes A and B and the respective “mean” of the marks obtained by each of the class are given in the following table : Class A Class BNumber of Students 20 80Arithmetic Mean 10 20The combined “mean” of the marks of the two classes will be :
A.	18
B.	15
C.	10
D.	20
Answer» C. 10

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