In a class of 22 students, 21 students get an average of 44 marks. If the remaining student get 66 marks, the average marks of the whole class is –    

A    30

B    45

C    15

D    None of these

Solution

Correct Answer: Option B

 

21 X 44 = 924

924 + 66 = 990

990/22 = 45

 

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