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The mean of 5 numbers is 18. When one number is removed, the mean of the remaining 4 becomes 16. Find the number that was removed.

Competition practiceData & Probability
  • A26
  • B24
  • C20
  • D34

Step-by-Step Solution

Sum of 5 numbers = . Sum of remaining . Removed number = 90 − 64 = 26.
Answer: A) 26

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