railway DMRC CRA Mock Test Series Quantitative Aptitude Average

The mean of marks secured by 65 students in division A of class X is 54, 30 students of division B is 50 and that of 55 students of division C is 48. Find the mean of marks of the students of three divisions of Class X.

1
50.3
2
49.6
3
51
4
52.4
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