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Q: The average of eleven numbers is 56. The average of first three numbers is 52 and that of next five numbers is 60. The 9th and 10th numbers are 3 and 1 more than the 11th number respectively. What is the average of 9th and 11th numbers ?
  • A. 53.5
  • B. 54
  • C. 52.5
  • D. 52
Correct Answer: Option A -
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Explanations:

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