SSC GD Average Questions
2 questions on Average for SSC GD, including questions from 2024 papers. Each comes with the correct answer and a worked explanation.
- Questions
- 2
- Moderate
- 2
Average questions with solutions
The average of 11 numbers is 23. If one number is removed, the average of the remaining numbers becomes 20. What is the removed number?
- (A)23
- (B)42
- (C)53
- (D)64
Show answer and explanation
Correct answer: (C) 53
Sum of all 11 numbers = 11 × 23 = 253. Sum of the remaining 10 numbers = 10 × 20 = 200. The removed number is the difference: 253 − 200 = 53.
Shortcut: Removed number = old average + (n − 1) × (old average − new average) = 23 + 10 × (3).
The average of 10 numbers is 25. If one number is removed, the average of the remaining numbers becomes 24. What is the removed number?
- (A)24
- (B)34
- (C)25
- (D)10
Show answer and explanation
Correct answer: (B) 34
Sum of all 10 numbers = 10 × 25 = 250. Sum of the remaining 9 numbers = 9 × 24 = 216. The removed number is the difference: 250 − 216 = 34.
Shortcut: Removed number = old average + (n − 1) × (old average − new average) = 25 + 9 × (1).
Frequently asked questions
How many SSC GD Average questions can I practise here?
2 questions — 2 moderate. 2 are shown on this page with answers and explanations, and the practice set draws from all of them.
How should I practise Average for SSC GD?
Read through a few solved questions first to see the method, then take a timed practice set. Afterwards, check which questions you got wrong or spent longest on and redo those before moving on.