Asked in PPSC, FPSC and other one-paper exams (compiled from unofficial resources).
In a set $S = \{0, 2, 4, 5, 9\}$, which number, if removed from the set, keeps the average unchanged?
- A.$0$
- B.$2$
- C.$4$Correct answer
- D.$5$
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Practice these MCQs in the appQuick fact: Removing $4$ from the set keeps the average unchanged because $4$ equals the original mean of the set.