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SSC CHSL Averages & Statistics Questions
Practise averages & statistics (quantitative aptitude) for the SSC Combined Higher Secondary Level Examination: 10 multiple-choice questions, each with the correct answer and a worked explanation. Click an option to check it, or “New questions” for another set.
Averages & Statistics practice
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Q1.The average of 11 numbers is 58. If 95 is added, what is the new average?
Show answer & explanation
Answer: B — 61.08
Old total = 11 × 58 = 638. New total = 638 + 95 = 733; new average = 733/12 = 61.08.
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Q2.Find the median of: 30, 21, 4, 23, 12, 20, 2
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Answer: C — 20
Sorted: 2, 4, 12, 20, 21, 23, 30. The middle (4th) value is 20.
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Q3.Find the range of: 4, 12, 13, 14, 38, 24, 20
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Answer: A — 34
Range = max − min = 38 − 4 = 34.
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Q4.Find the median of: 13, 20, 14, 7, 21, 6, 25
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Answer: B — 14
Sorted: 6, 7, 13, 14, 20, 21, 25. The middle (4th) value is 14.
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Q5.Find the median of: 19, 23, 17, 33, 26, 11, 28
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Answer: C — 23
Sorted: 11, 17, 19, 23, 26, 28, 33. The middle (4th) value is 23.
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Q6.The average of 12 numbers is 28. If 58 is added, what is the new average?
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Answer: B — 30.31
Old total = 12 × 28 = 336. New total = 336 + 58 = 394; new average = 394/13 = 30.31.
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Q7.Find the mean of: 9, 19, 38, 22, 19, 29, 31
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Answer: B — 23.86
Sum = 167, ÷ 7 = 23.86.
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Q8.Find the median of: 5, 29, 38, 4, 32, 17, 14
Show answer & explanation
Answer: B — 17
Sorted: 4, 5, 14, 17, 29, 32, 38. The middle (4th) value is 17.
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Q9.Find the range of: 5, 40, 40, 30, 14, 14, 23
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Answer: C — 35
Range = max − min = 40 − 5 = 35.
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Q10.Find the mean of: 27, 32, 15, 24, 2, 4, 10
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Answer: D — 16.29
Sum = 114, ÷ 7 = 16.29.
How to approach averages & statistics questions
Average × count = total: most average questions are really about totals. For a set of data, sort it before finding the median and look for the most frequent value for the mode.
About SSC CHSL
SSC Combined Higher Secondary Level Examination — conducted by Staff Selection Commission (SSC). Recruits Class 12 pass candidates for posts such as LDC, JSA and Data Entry Operator.
Original practice questions written for this site in the style and difficulty of each exam’s syllabus. They are not past papers and the site is not affiliated with any exam body. Exam patterns, marking schemes and syllabi change — always check the latest official notification.
SSC CHSL practice topics
| Topic | Section | Question source |
|---|---|---|
| Percentages | Quantitative aptitude | Calculated (new numbers every set) |
| Averages & Statistics | Quantitative aptitude | Calculated (new numbers every set) |
| Number System & Simplification | Quantitative aptitude | Calculated (new numbers every set) |
| Logical Reasoning | Reasoning | Calculated (new numbers every set) |
| English Grammar | English | Question bank |
| Vocabulary & Idioms | English | Question bank |
| Indian Polity, History & Geography | General awareness | Question bank |