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Sticky Note
The average of 7, 13, 17, x, and 29 is 18. What is the value of x?
  1. 22
  2. 23
  3. 24
  4. None of these
Explanation

Given:

Average = 18

Numbers: 7, 13, 17, x, 29

Average = (Sum of numbers) / (Total count)

18 = (7 + 13 + 17 + x + 29) / 5

Multiply both sides by 5:

90 = 66 + x

x = 90 - 66

x = 24

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