1.

The mean of marks secured by 35 students in division A of class X is 65, 45 students of division B is 61 and that of 70 students of division C is 59. What is the mean of marks of the students of three divisions of Class X?

A. 60.3
B. 59.6
C. 61
D. 62.4
Answer» D. 62.4


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