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Q: The average age of 3 girls is 20 years and their ages are in the ratio 3 : 5: 7. The age of the eldest girl is_________.
  • A. 20 year/20वर्ष
  • B. 28 year/28 वर्ष
  • C. 35 year/35 वर्ष
  • D. 30 year/30 वर्ष
Correct Answer: Option B -
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Explanations:

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