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SSC MTS Average Questions with Answers & Explanations

18 Average questions from the Session I: Numerical & Mathematical Ability section of SSC MTS, 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 31. If one number is removed, the average of the remaining numbers becomes 28. What is the number removed?

  1. A43
  2. B40
  3. C38
  4. D45
Show answer
Answer: (A) 43 Removed number = 5 × 31 − 4 × 28 = 43.
Question 2

The average of 5 numbers is 25. If one number is removed, the average of the remaining numbers becomes 29. What is the number removed?

  1. A10
  2. B9
  3. C11
  4. D7
Show answer
Answer: (B) 9 Removed number = 5 × 25 − 4 × 29 = 9.
Question 3

The average of 6 numbers is 35. If one number is removed, the average of the remaining numbers becomes 38. What is the number removed?

  1. A22
  2. B14
  3. C20
  4. D26
Show answer
Answer: (C) 20 Removed number = 6 × 35 − 5 × 38 = 20.
Question 4

The average of 8 numbers is 56. If one number is removed, the average of the remaining numbers becomes 59. What is the number removed?

  1. A32
  2. B35
  3. C27
  4. D34
Show answer
Answer: (B) 35 Removed number = 8 × 56 − 7 × 59 = 35.
Question 5

The average of 8 numbers is 52. If one number is removed, the average of the remaining numbers becomes 55. What is the number removed?

  1. A31
  2. B28
  3. C26
  4. D29
Show answer
Answer: (A) 31 Removed number = 8 × 52 − 7 × 55 = 31.
Question 6

The average of 8 numbers is 54. If one number is removed, the average of the remaining numbers becomes 51. What is the number removed?

  1. A83
  2. B67
  3. C75
  4. D70
Show answer
Answer: (C) 75 Removed number = 8 × 54 − 7 × 51 = 75.
Question 7

The average of 5 numbers is 50. If one number is removed, the average of the remaining numbers becomes 48. What is the number removed?

  1. A58
  2. B60
  3. C56
  4. D63
Show answer
Answer: (A) 58 Removed number = 5 × 50 − 4 × 48 = 58.
Question 8

The average of 5 numbers is 57. If one number is removed, the average of the remaining numbers becomes 55. What is the number removed?

  1. A67
  2. B68
  3. C65
  4. D60
Show answer
Answer: (C) 65 Removed number = 5 × 57 − 4 × 55 = 65.
Question 9

The average of 5 numbers is 37. If one number is removed, the average of the remaining numbers becomes 41. What is the number removed?

  1. A19
  2. B26
  3. C21
  4. D16
Show answer
Answer: (C) 21 Removed number = 5 × 37 − 4 × 41 = 21.
Question 10

The average of 6 numbers is 43. If one number is removed, the average of the remaining numbers becomes 40. What is the number removed?

  1. A53
  2. B52
  3. C58
  4. D61
Show answer
Answer: (C) 58 Removed number = 6 × 43 − 5 × 40 = 58.

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Question 11

The average of 10 numbers is 44. If one number is removed, the average of the remaining numbers becomes 48. What is the number removed?

  1. A5
  2. B18
  3. C6
  4. D8
Show answer
Answer: (D) 8 Removed number = 10 × 44 − 9 × 48 = 8.
Question 12

The average of 6 numbers is 58. If one number is removed, the average of the remaining numbers becomes 61. What is the number removed?

  1. A38
  2. B48
  3. C40
  4. D43
Show answer
Answer: (D) 43 Removed number = 6 × 58 − 5 × 61 = 43.
Question 13

The average of 6 numbers is 31. If one number is removed, the average of the remaining numbers becomes 29. What is the number removed?

  1. A41
  2. B42
  3. C44
  4. D35
Show answer
Answer: (A) 41 Removed number = 6 × 31 − 5 × 29 = 41.
Question 14

The average of 6 numbers is 58. If one number is removed, the average of the remaining numbers becomes 60. What is the number removed?

  1. A42
  2. B54
  3. C48
  4. D45
Show answer
Answer: (C) 48 Removed number = 6 × 58 − 5 × 60 = 48.
Question 15

The average of 8 numbers is 55. If one number is removed, the average of the remaining numbers becomes 53. What is the number removed?

  1. A69
  2. B68
  3. C77
  4. D74
Show answer
Answer: (A) 69 Removed number = 8 × 55 − 7 × 53 = 69.
Question 16

The average of 8 numbers is 23. If one number is removed, the average of the remaining numbers becomes 25. What is the number removed?

  1. A4
  2. B8
  3. C9
  4. D10
Show answer
Answer: (C) 9 Removed number = 8 × 23 − 7 × 25 = 9.
Question 17

The average of 5 numbers is 44. If one number is removed, the average of the remaining numbers becomes 46. What is the number removed?

  1. A33
  2. B31
  3. C36
  4. D41
Show answer
Answer: (C) 36 Removed number = 5 × 44 − 4 × 46 = 36.
Question 18

The average of 10 numbers is 39. If one number is removed, the average of the remaining numbers becomes 37. What is the number removed?

  1. A52
  2. B57
  3. C60
  4. D62
Show answer
Answer: (B) 57 Removed number = 10 × 39 − 9 × 37 = 57.

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

More Session I: Numerical & Mathematical Ability topics

Number System 27 Qs Profit, Loss & Discount 23 Qs Speed, Time & Distance 22 Qs Mensuration 21 Qs Simple & Compound Interest 19 Qs Simplification & Approximation 18 Qs Time & Work 17 Qs Mixture & Alligation 17 Qs

All SSC MTS topics →