A) 50.5
B) 37.5
C) 42.5
D) 45
Correct Answer: B
Solution :
Total marks of 28 students \[=28\times 50=1400\] Total marks of 20 students \[=20\times 55=1100\] \[\therefore \] Total marks of 8 students \[=1400-1100=300\] \[\therefore \] Average \[=\frac{300}{8}=37.5\]You need to login to perform this action.
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