The average mark of 70 students in a class is 80. Out of these 70 s – McqOptions

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1.	The average mark of 70 students in a class is 80. Out of these 70 students, if the average mark of 40 students is 75, what is the average mark of the remaining 30 students?
A.	44.45
B.	58.34
C.	86.67
D.	71.23
Answer» D. 71.23

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