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The mean of 17 numbers is 12. If two numbers 9 and 15 are removed, then what will be the mean of remaining number?
  • a)
    11
  • b)
    12
  • c)
    13
  • d)
    14
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
The mean of 17 numbers is 12. If two numbers 9 and 15 are removed, th...
Sum of 17 numbers = 17 ×12 = 204
After removal of 9 and 15, sum becomes 180.
Therefore,
Mean of remaining 15 numbers = 180/15=12
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The mean of 17 numbers is 12. If two numbers 9 and 15 are removed, then what will be the mean of remaining number?a)11b)12c)13d)14Correct answer is option 'B'. Can you explain this answer?
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