A) 69
B) 60
C) 66
D) 62
E) 65
Correct Answer: E
Solution :
Total marks of 100 students = 7200 Total marks of 70 boys\[=70\times 75=5250\] \[\therefore \]Total marks of 30 girls \[=7200-5250=1950\] \[\therefore \] \[Mean=\frac{1950}{30}=65\]You need to login to perform this action.
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