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Q: In a class of 50 students, the ratio of boys and girls is 2:3. The average marks of the boys is 60 and the average marks of the girls is 70. What is the average marks of the whole class?
  • A. 65
  • B. 66
  • C. 67
  • D. 64
Correct Answer: Option B -
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Explanations:

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