In an exam, the average marks for 80 students of Class V is 35. The a – McqOptions

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1.	In an exam, the average marks for 80 students of Class V is 35. The average of marks in section A of the class is 55 while the average of marks in section B is 30. Find the number of students in Class V B.
A.	45
B.	50
C.	64
D.	70
Answer» D. 70

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