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Q: The mean of the 8 smallest numbers in a group is 17. While the mean of the all numbers is 20. If the smallest eight numbers leave, then the mean of the reamining number is 22. So find out the total numbers in the group?
  • A. 20
  • B. 22
  • C. 18
  • D. 19
Correct Answer: Option A -
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Explanations:

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