Logic and Reasoning Questions and Answers

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Q21
which pair of numbers comes next. 84 78 72 66 60 54 48
  • A 44 34
  • B 42 36
  • C 42 32
  • D 40 34
Answer: Option B
Explanation: In this simple subtraction series, each number is 6 less than the previous number.
Q22
which pair of numbers comes next. 3 8 13 18 23 28 33
  • A 39 44
  • B 38 44
  • C 38 43
  • D 37 42
Answer: Option C
Explanation: In this simple addition series, each number is 5 greater than the previous number.
Q23
which pair of numbers comes next. 20 20 17 17 14 14 11
  • A 8 8
  • B 11 11
  • C 11 14
  • D 8 9
Answer: Option
Explanation: This is a simple subtraction with repetition series. It begins with 20, which is repeated, then 3 is subtracted, resulting in 17, which is repeated, and so on.
Q24
which pair of numbers comes next.
  • A 43 18
  • B 41 44
  • C 37 18
  • D 37 41
Answer: Option D
Explanation: This is a simple addition series with a random number, 18, interpolated as every third number. In the series, 4 is added to each number except 18, to arrive at the next number.
Q25
which pair of numbers comes next.
  • A 19 33
  • B 33 35
  • C 33 19
  • D 15 33
Answer: Option A
Explanation: In this alternating repetition series, a random number, 33, is interpolated every third number into a simple addition series, in which each number increases by 2.
Q26
which pair of numbers comes next. 2 8 14 20 26 32 38
  • A 2 46
  • B 44 50
  • C 42 48
  • D 40 42
Answer: Option B
Explanation: This is a simple addition series, which begins with 2 and adds 6.
Q27
which pair of numbers comes next. 28 25 5 21 18 5 14
  • A 11 5
  • B 10 7
  • C 11 8
  • D 5 10
Answer: Option A
Explanation: This is an alternating subtraction series with the interpolation of a random number, 5, as every third number. In the subtraction series, 3 is subtracted, then 4, then 3, and so on.
Q28
which pair of numbers comes next. 9 12 11 14 13 16 15
  • A 14 13
  • B 18 21
  • C 14 17
  • D 12 13
Answer: Option
Explanation: This is a simple alternating addition and subtraction series. First, 3 is added, then 1 is subtracted, then 3 is added, 1 subtracted, and so on.
Q29
which pair of numbers comes next. 75 65 85 55 45 85 35
  • A 25 15
  • B 25 85
  • C 35 25
  • D 85 35
Answer: Option B
Explanation: This is a simple subtraction series in which a random number, 85, is interpolated as every third number. In the subtraction series, 10 is subtracted from each number to arrive at the next.
Q30
which pair of numbers comes next. 1 10 7 20 13 30 19
  • A 26 40
  • B 29 36
  • C 40 25
  • D 25 31
Answer: Option C
Explanation: Here, every other number follows a different pattern. In the first series, 6 is added to each number to arrive at the next. In the second series, 10 is added to each number to arrive at the next

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