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Q: In a class of 40 students the ratio of boys and girls is 7:3. Average marks of boys is 65 and the average marks of the girls is 72. What is the average marks of the whole class?
  • A. 67.1
  • B. 68.4
  • C. 68.3
  • D. 68.2
Correct Answer: Option A -
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Explanations:

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