A) 76.89
B) 77
C) 77.29
D) 75.98
Correct Answer: A
Solution :
Boys = \[\frac{5}{9}\times 45=25\]and girls 45 ? 25 = 20 \[\therefore \] Required average = \[\frac{25\times 76+20\times 78}{45}=\frac{3460}{45}\] = [76.89 (approx)]You need to login to perform this action.
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