Multiple choice

The average of three numbers of which the greatest is 16 is 12. If the smallest is half of the greatest, the remaining number is

  1. 8

  2. 10

  3. 14

  4. 12
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D Correct answer
Explanation

The average of three numbers is 12, so their sum is 36. Given that the greatest number is 16 and the smallest is half of the greatest (8), the remaining number must be 36 - 16 - 8 = 12. This makes the three numbers 8, 12, and 16, which indeed have an average of 12.

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