The arithmetic mean of the marks scored by students of a class is 58. – McqOptions

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1.	The arithmetic mean of the marks scored by students of a class is 58. 20% of them secured a mean score of 60. The mean score of another 30% of the students was 40. The mean score of the remaining students is
A.	65
B.	66
C.	68
D.	70
Answer» D. 70

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