Discussion
The average of three numbers is 28. Two of them are 22 and 30. The third number is:
Answer: A
The three numbers total \(3 \times 28 = 84\). Two of them account for \(22 + 30 = 52\), so the third is \(84 - 52 = 32\). Converting an average into a total before doing anything else is the reliable first move in these questions.
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