SSC CGL Average question with solution
AverageModerateSSC CGL 2023
The average of 11 numbers is 27. If one number is removed, the average of the remaining numbers becomes 25. What is the removed number?
- (A)47
- (B)36
- (C)22
- (D)58
Correct answer: (A) 47
Sum of all 11 numbers = 11 × 27 = 297. Sum of the remaining 10 numbers = 10 × 25 = 250. The removed number is the difference: 297 − 250 = 47.
Shortcut: Removed number = old average + (n − 1) × (old average − new average) = 27 + 10 × (2).
About this question
- Subject
- Quantitative Aptitude
- Topic
- Average
- Exam
- SSC CGL 2023
- Attempts on SSC Rank
- Not attempted yet
Appears in: SSC CGL 2023 Tier 1 Question Paper — 14 July, Shift 2
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Last reviewed on 5 Oct 2026. Spotted a mistake? See our correction policy.