Logic and Reasoning Questions and Answers

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Q11
Look at this series: 31, 29, 24, 22, 17, . . . What number should come next?
  • A 15
  • B 14
  • C 13
  • D 12
Answer: Option A
Explanation: This is a simple alternating subtraction series, which subtracts 2, then 5.
Q12
Look at this series: 21, 9, 21, 11, 21, 13, . . . What number should come next?
  • A 14
  • B 15
  • C 21
  • D 23
Answer: Option C
Explanation: In this alternating repetition series, the random number 21 is interpolated every other number into an otherwise simple addition series that increases by 2, beginning with the number 9.
Q13
Look at this series: 53, 53, 40, 40, 27, 27, . . . What number should come next?
  • A 12
  • B 14
  • C 27
  • D 53
Answer: Option B
Explanation: In this series, each number is repeated, then 13 issubtracted to arrive at the next number.
Q14
Look at this series: 2, 6, 18, 54, . . . What number should come next?
  • A 108
  • B 148
  • C 162
  • D 216
Answer: Option C
Explanation: This is a simple multiplication series. Each number is 3 times more than the previous number.
Q15
Look at this series: 1,000, 200, 40, . . . What number should come next?
  • A 8
  • B 10
  • C 15
  • D 20
Answer: Option A
Explanation: This is a simple division series. Each number is divided by 5.
Q16
Look at this series: 7, 10, 8, 11, 9, 12, . . . What number should come next?
  • A 7
  • B 10
  • C 12
  • D 13
Answer: Option B
Explanation: This is a simple alternating addition and subtraction series. In the first pattern, 3 is added; in the second, 2 is subtracted.
Q17
Look at this series: 14, 28, 20, 40, 32, 64, . . . What number should come next?
  • A 52
  • B 56
  • C 96
  • D 128
Answer: Option B
Q18
Look at this series: 1.5, 2.3, 3.1, 3.9, . . . What number should come next?
  • A 4.2
  • B 4.4
  • C 4.7
  • D 5.1
Answer: Option C
Explanation: In this simple addition series, each number increases by 0.8.
Q19
Look at this series: 5.2, 4.8, 4.4, 4, . . . What number should come next?
  • A 3
  • B 3.3
  • C 3.5
  • D 3.6
Answer: Option D
Explanation: In this simple subtraction series, each number decreases by 0.4.
Q20
Look at this series: 2, 1, 1/2, 1/4 ...... what number should be next.
  • A 1/3
  • B 1/8
  • C 2/8
  • D 1/16
Answer: Option B
Explanation: This is a simple division series; each number is one-half of the previous number. –ANSWERS–

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