A) 73
B) 65
C) 68
D) 74
Correct Answer: B
Solution :
Total student = 100 Average marks =72 Total marks of the class \[=72\times 100=720\] Total marks of the boys \[=70\times 75=5250\] So, Total marks of the girls \[=7200-5250=1950\] Average of girls \[=\frac{1950}{30}=65\]You need to login to perform this action.
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