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Q: The arithmetic mean of marks obtained by students of a class was 58. 20% of them achieved by the mean of the marks was 60 and the marks obtained by 30% the mean was 40. then find the mean of the marks obtained by remaining students?
  • A. 65
  • B. 66
  • C. 68
  • D. 70
Correct Answer: Option C -
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Explanations:

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