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DSSSB PRT/TGT Sets Questions with Answers & Explanations

20 Sets questions from the Subject: Mathematics section of DSSSB PRT/TGT, 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

If n(A) = 38, n(B) = 48 and n(A ∩ B) = 22, what is n(A ∪ B)?

  1. A86
  2. B64
  3. C42
  4. D108
Show answer
Answer: (B) 64 n(A ∪ B) = n(A) + n(B) − n(A ∩ B) = 64.
Question 2

If n(A) = 38, n(B) = 32 and n(A ∩ B) = 22, what is n(A ∪ B)?

  1. A92
  2. B26
  3. C48
  4. D70
Show answer
Answer: (C) 48 n(A ∪ B) = n(A) + n(B) − n(A ∩ B) = 48.
Question 3

If n(A) = 39, n(B) = 59 and n(A ∩ B) = 23, what is n(A ∪ B)?

  1. A121
  2. B52
  3. C98
  4. D75
Show answer
Answer: (D) 75 n(A ∪ B) = n(A) + n(B) − n(A ∩ B) = 75.
Question 4

If n(A) = 50, n(B) = 23 and n(A ∩ B) = 8, what is n(A ∪ B)?

  1. A73
  2. B81
  3. C57
  4. D65
Show answer
Answer: (D) 65 n(A ∪ B) = n(A) + n(B) − n(A ∩ B) = 65.
Question 5

If n(A) = 56, n(B) = 31 and n(A ∩ B) = 19, what is n(A ∪ B)?

  1. A87
  2. B49
  3. C106
  4. D68
Show answer
Answer: (D) 68 n(A ∪ B) = n(A) + n(B) − n(A ∩ B) = 68.
Question 6

If n(A) = 30, n(B) = 55 and n(A ∩ B) = 7, what is n(A ∪ B)?

  1. A78
  2. B71
  3. C92
  4. D85
Show answer
Answer: (A) 78 n(A ∪ B) = n(A) + n(B) − n(A ∩ B) = 78.
Question 7

If n(A) = 40, n(B) = 50 and n(A ∩ B) = 12, what is n(A ∪ B)?

  1. A90
  2. B66
  3. C102
  4. D78
Show answer
Answer: (D) 78 n(A ∪ B) = n(A) + n(B) − n(A ∩ B) = 78.
Question 8

If n(A) = 41, n(B) = 53 and n(A ∩ B) = 29, what is n(A ∪ B)?

  1. A94
  2. B36
  3. C65
  4. D123
Show answer
Answer: (C) 65 n(A ∪ B) = n(A) + n(B) − n(A ∩ B) = 65.
Question 9

If n(A) = 32, n(B) = 45 and n(A ∩ B) = 27, what is n(A ∪ B)?

  1. A77
  2. B50
  3. C23
  4. D104
Show answer
Answer: (B) 50 n(A ∪ B) = n(A) + n(B) − n(A ∩ B) = 50.
Question 10

If n(A) = 54, n(B) = 53 and n(A ∩ B) = 38, what is n(A ∪ B)?

  1. A145
  2. B31
  3. C69
  4. D107
Show answer
Answer: (C) 69 n(A ∪ B) = n(A) + n(B) − n(A ∩ B) = 69.

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Question 11

If n(A) = 25, n(B) = 39 and n(A ∩ B) = 20, what is n(A ∪ B)?

  1. A84
  2. B44
  3. C64
  4. D24
Show answer
Answer: (B) 44 n(A ∪ B) = n(A) + n(B) − n(A ∩ B) = 44.
Question 12

If n(A) = 60, n(B) = 29 and n(A ∩ B) = 18, what is n(A ∪ B)?

  1. A53
  2. B89
  3. C71
  4. D107
Show answer
Answer: (C) 71 n(A ∪ B) = n(A) + n(B) − n(A ∩ B) = 71.
Question 13

If n(A) = 34, n(B) = 29 and n(A ∩ B) = 12, what is n(A ∪ B)?

  1. A51
  2. B63
  3. C39
  4. D75
Show answer
Answer: (A) 51 n(A ∪ B) = n(A) + n(B) − n(A ∩ B) = 51.
Question 14

If n(A) = 26, n(B) = 22 and n(A ∩ B) = 11, what is n(A ∪ B)?

  1. A59
  2. B26
  3. C48
  4. D37
Show answer
Answer: (D) 37 n(A ∪ B) = n(A) + n(B) − n(A ∩ B) = 37.
Question 15

If n(A) = 44, n(B) = 58 and n(A ∩ B) = 13, what is n(A ∪ B)?

  1. A76
  2. B115
  3. C102
  4. D89
Show answer
Answer: (D) 89 n(A ∪ B) = n(A) + n(B) − n(A ∩ B) = 89.
Question 16

If n(A) = 26, n(B) = 56 and n(A ∩ B) = 10, what is n(A ∪ B)?

  1. A92
  2. B72
  3. C62
  4. D82
Show answer
Answer: (B) 72 n(A ∪ B) = n(A) + n(B) − n(A ∩ B) = 72.
Question 17

If n(A) = 32, n(B) = 25 and n(A ∩ B) = 18, what is n(A ∪ B)?

  1. A75
  2. B21
  3. C57
  4. D39
Show answer
Answer: (D) 39 n(A ∪ B) = n(A) + n(B) − n(A ∩ B) = 39.
Question 18

If n(A) = 44, n(B) = 46 and n(A ∩ B) = 34, what is n(A ∪ B)?

  1. A56
  2. B124
  3. C22
  4. D90
Show answer
Answer: (A) 56 n(A ∪ B) = n(A) + n(B) − n(A ∩ B) = 56.
Question 19

If n(A) = 48, n(B) = 34 and n(A ∩ B) = 7, what is n(A ∪ B)?

  1. A68
  2. B75
  3. C89
  4. D82
Show answer
Answer: (B) 75 n(A ∪ B) = n(A) + n(B) − n(A ∩ B) = 75.
Question 20

If n(A) = 51, n(B) = 43 and n(A ∩ B) = 24, what is n(A ∪ B)?

  1. A94
  2. B46
  3. C118
  4. D70
Show answer
Answer: (D) 70 n(A ∪ B) = n(A) + n(B) − n(A ∩ B) = 70.

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

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