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The mean of 6 numbers is 15. When one number is removed, the mean of the remaining 5 numbers becomes 14. The removed number is ?

Competition practiceData & Probability
  • A18
  • B20
  • C22
  • D25

Step-by-Step Solution

Total of 6 numbers = . Total of remaining . Removed number = 90 − 70 = 20.
Answer: B) 20

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