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SBI PO Average Questions with Answers & Explanations

20 Average questions from the Quantitative Aptitude section of SBI PO, each with the correct answer and a worked explanation. Try each question first, then tap Show answer to check. When you're ready, take the timed chapter-wise test to see your all-India rank.

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Question 1

The average of 5 numbers is 58. If one number is removed, the average of the remaining numbers becomes 56. What is the number removed?

  1. A66
  2. B61
  3. C67
  4. D71
  5. E69
Show answer
Answer: (A) 66 Removed number = 5 × 58 − 4 × 56 = 66.
Question 2

The average of 10 numbers is 28. If one number is removed, the average of the remaining numbers becomes 30. What is the number removed?

  1. A13
  2. B10
  3. C11
  4. D12
  5. E20
Show answer
Answer: (B) 10 Removed number = 10 × 28 − 9 × 30 = 10.
Question 3

The average of 8 numbers is 38. If one number is removed, the average of the remaining numbers becomes 42. What is the number removed?

  1. A5
  2. B13
  3. C12
  4. D7
  5. E10
Show answer
Answer: (E) 10 Removed number = 8 × 38 − 7 × 42 = 10.
Question 4

The average of 8 numbers is 27. If one number is removed, the average of the remaining numbers becomes 31. What is the number removed?

  1. A1
  2. B4
  3. C7
  4. D2
  5. E-1
Show answer
Answer: (E) -1 Removed number = 8 × 27 − 7 × 31 = -1.
Question 5

The average of 6 numbers is 53. If one number is removed, the average of the remaining numbers becomes 51. What is the number removed?

  1. A57
  2. B66
  3. C63
  4. D69
  5. E68
Show answer
Answer: (C) 63 Removed number = 6 × 53 − 5 × 51 = 63.
Question 6

The average of 5 numbers is 25. If one number is removed, the average of the remaining numbers becomes 22. What is the number removed?

  1. A42
  2. B34
  3. C36
  4. D37
  5. E32
Show answer
Answer: (D) 37 Removed number = 5 × 25 − 4 × 22 = 37.
Question 7

The average of 8 numbers is 34. If one number is removed, the average of the remaining numbers becomes 38. What is the number removed?

  1. A3
  2. B9
  3. C14
  4. D4
  5. E6
Show answer
Answer: (E) 6 Removed number = 8 × 34 − 7 × 38 = 6.
Question 8

The average of 8 numbers is 33. If one number is removed, the average of the remaining numbers becomes 37. What is the number removed?

  1. A8
  2. B4
  3. C5
  4. D2
  5. E7
Show answer
Answer: (C) 5 Removed number = 8 × 33 − 7 × 37 = 5.
Question 9

The average of 6 numbers is 46. If one number is removed, the average of the remaining numbers becomes 48. What is the number removed?

  1. A36
  2. B38
  3. C42
  4. D34
  5. E37
Show answer
Answer: (A) 36 Removed number = 6 × 46 − 5 × 48 = 36.
Question 10

The average of 6 numbers is 27. If one number is removed, the average of the remaining numbers becomes 29. What is the number removed?

  1. A17
  2. B18
  3. C11
  4. D20
  5. E22
Show answer
Answer: (A) 17 Removed number = 6 × 27 − 5 × 29 = 17.

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Question 11

The average of 5 numbers is 60. If one number is removed, the average of the remaining numbers becomes 58. What is the number removed?

  1. A66
  2. B73
  3. C68
  4. D65
  5. E63
Show answer
Answer: (C) 68 Removed number = 5 × 60 − 4 × 58 = 68.
Question 12

The average of 6 numbers is 28. If one number is removed, the average of the remaining numbers becomes 26. What is the number removed?

  1. A44
  2. B36
  3. C41
  4. D38
  5. E35
Show answer
Answer: (D) 38 Removed number = 6 × 28 − 5 × 26 = 38.
Question 13

The average of 8 numbers is 47. If one number is removed, the average of the remaining numbers becomes 44. What is the number removed?

  1. A76
  2. B68
  3. C70
  4. D60
  5. E63
Show answer
Answer: (B) 68 Removed number = 8 × 47 − 7 × 44 = 68.
Question 14

The average of 10 numbers is 31. If one number is removed, the average of the remaining numbers becomes 28. What is the number removed?

  1. A56
  2. B57
  3. C59
  4. D58
  5. E68
Show answer
Answer: (D) 58 Removed number = 10 × 31 − 9 × 28 = 58.
Question 15

The average of 5 numbers is 40. If one number is removed, the average of the remaining numbers becomes 44. What is the number removed?

  1. A19
  2. B27
  3. C26
  4. D21
  5. E24
Show answer
Answer: (E) 24 Removed number = 5 × 40 − 4 × 44 = 24.
Question 16

The average of 5 numbers is 34. If one number is removed, the average of the remaining numbers becomes 36. What is the number removed?

  1. A21
  2. B26
  3. C23
  4. D28
  5. E24
Show answer
Answer: (B) 26 Removed number = 5 × 34 − 4 × 36 = 26.
Question 17

The average of 10 numbers is 55. If one number is removed, the average of the remaining numbers becomes 58. What is the number removed?

  1. A31
  2. B27
  3. C28
  4. D18
  5. E25
Show answer
Answer: (C) 28 Removed number = 10 × 55 − 9 × 58 = 28.
Question 18

The average of 6 numbers is 33. If one number is removed, the average of the remaining numbers becomes 35. What is the number removed?

  1. A23
  2. B29
  3. C17
  4. D25
  5. E18
Show answer
Answer: (A) 23 Removed number = 6 × 33 − 5 × 35 = 23.
Question 19

The average of 6 numbers is 36. If one number is removed, the average of the remaining numbers becomes 34. What is the number removed?

  1. A41
  2. B40
  3. C49
  4. D52
  5. E46
Show answer
Answer: (E) 46 Removed number = 6 × 36 − 5 × 34 = 46.
Question 20

The average of 10 numbers is 49. If one number is removed, the average of the remaining numbers becomes 47. What is the number removed?

  1. A67
  2. B69
  3. C70
  4. D72
  5. E66
Show answer
Answer: (A) 67 Removed number = 10 × 49 − 9 × 47 = 67.

These are RankerClub practice questions written in the SBI PO pattern. They are not official SSC/IBPS/RRB papers.

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