campus placement Deloitte Test Series Quantitative Aptitude Average

The mean of marks secured by 45 students in division A of class X is 69, 65 students of division B is 65 and that of 50 students of division C is 63. Find the mean of marks of the students of three divisions of Class X.

1
65.5
2
64.8
3
64.1
4
66.9
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