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2 November, 23:05

The average number is 21. If three of the numbers are 12 18 and 28. What is the missing number

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  1. 2 November, 23:49
    0
    The missing number is 26 because 12+18+28+26=84. 84/4=21
  2. 3 November, 00:46
    0
    Use 21 and subtract to find the answer between them
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