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Q: If 40 is added to a list of natural numbers, the average is increased by 4. When 30 is added to the new list, the average of the numbers in the new list is increased by 1. How many numbers were in the original list?
  • A. 4
  • B. 5
  • C. 8
  • D. 6
Correct Answer: Option A -
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Explanations:

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