In a class, there were 28 boys and some girls. In a test, the mean score obtained by the boys was 12.5 while that obtained by the girls was 14.5. If the overall mean score was 13.1, then what was the total number of students in the class?

In a class, there were 28 boys and some girls. In a test, the mean sco

1.	In a class, there were 28 boys and some girls. In a test, the mean score obtained by the boys was 12.5 while that obtained by the girls was 14.5. If the overall mean score was 13.1, then what was the total number of students in the class?
A.	42
B.	44
C.	40
D.	38
Answer» D. 38

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In a class, there were 28 boys and some girls. In a test, the mean score obtained by the boys was 12.5 while that obtained by the girls was 14.5. If the overall mean score was 13.1, then what was the total number of students in the class?

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