Mental ability-Series Completion Test Questions and Answers

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Mental Ability – Series Completion Test Questions with Answers help aspirants sharpen their logical reasoning and pattern recognition skills. This section includes number, alphabet, and figure series problems often asked in SSC, RRB, IBPS, and other aptitude-based exams. Practicing reasoning questions and answers enhances analytical speed and improves test accuracy. Each problem is carefully designed with explanations that help identify missing terms or patterns in a logical sequence. These series completion tests play a key role in assessing mental alertness and decision-making speed, both crucial in competitive exams. Candidates can practice reasoning questions for competitive exams online and download PDFs for systematic preparation. Boost your logical thinking with these mental ability questions today.

Mental ability-Series Completion Test

Showing 10 of 148 questions

91. Fill in the blank space 11, 10, (........), 100, 1001, 1000, 10001

  • 101
  • 110
  • 111
  • None of these
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92. Fill in the blank space 123456147, 12345614, 2345614, 234561, (........)

  • 3456
  • 2345
  • 23456
  • 34561
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93. Fill in the blank space 4/9, 9/20, (......), 39/86

  • 17/40
  • 19/42
  • 20/45
  • 29/53
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94. Fill in the blank space (2, 3), (3, 5), (5, 7), (7, 11), (11, 13), (..........)

  • (13, 15)
  • (15, 16)
  • (13, 17)
  • (13, 19)
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95. Fill in the blank space In the series 10, 17, 24, 31, 38, ...... which of the following willbe a number of the series ?

  • 48
  • 346
  • 574
  • 1003
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96. Fill in the blank space Which of the following will not be anumber of the series 1, 8, 27, 64, 125, ........ ?

  • 256
  • 512
  • 729
  • 1000
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97. Fill in the blank space In the series 3, 9, 15, ...., what willbe the 21st term ?

  • 117
  • 121
  • 123
  • 129
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98. Fill in the blank space In the series 2, 6, 18, 54, .........,what will be the 8th term ?

  • 4370
  • 4374
  • 7443
  • 7434
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99. Fill in the blank space Which term of the series 5, 8, 11, 14, .... is 320 ?

  • 104th
  • 105th
  • 106th
  • 64th
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100. Fill in the blank space Which term of the series 5, 10, 20, 40, .... is 1280 ?

  • 10th
  • 9th
  • 8th
  • None of these
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