Series Completion Questions Answers

• 15. 19, 2, 38, 3, 114, 4, ? . Which term should replace the question mark in this series ?

  1. 340
  2. 380
  3. 456
  4. 486

  Answer And Explanation

  Answer: Option C

  Explanation:

  Please check the given sequence is combination of two series.
  Series 1: 19, 38, 114, ...
  Series 2: 2,3,4
  
  In series 1, Pattern followed is *2, *3, so next will be *4
  Next term will be
  114*4 = 456

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• 16. 36, 34, 30, 28, 24, ... What number should come next?

  1. 22
  2. 20
  3. 18
  4. 16

  Answer And Explanation

  Answer: Option A

  Explanation:

  Pattern in the series is, -2, -4, -2, -4. So next term will be -2
  24 -2 = 22

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• 17. 3, 12, 27, 48, 75, 108,

  1. 141
  2. 143
  3. 145
  4. 147

  Answer And Explanation

  Answer: Option D

  Explanation:

  Series is having pattern
  \begin{aligned}
  3*1^2, 3*2^2, 3*3^2, ......\\
  \text{Next will be } 3*7^2 = 147
  \end{aligned}
  

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• 18. 2,15,41,80, ? . Complete the series.

  1. 130
  2. 132
  3. 134
  4. 136

  Answer And Explanation

  Answer: Option B

  Explanation:

  Pattern is +13,+(13*2), +(13*3)
  Next will be +(13*4) = 80+52 = 132

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• 19. 8, 10, 14, 18, (...), 34, 50, 66

  1. 20
  2. 24
  3. 26
  4. 28

  Answer And Explanation

  Answer: Option C

  Explanation:

  Patten is +2, +4, +4, .., .., +16, +16
  
  Missing number will be 18+8 = 26
  

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• 20. 1,2,6,24, ?

  1. 110
  2. 118
  3. 120
  4. 122

  Answer And Explanation

  Answer: Option C

  Explanation:

  Pattern is *2, *3, *4
  So next number is the series will be *5
  24*5 = 120

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• 21. Complete the series 95, 115.5, 138, ..., 189

  1. 160.5
  2. 162.5
  3. 164.5
  4. 166.5

  Answer And Explanation

  Answer: Option B

  Explanation:

  Pattern in the series is, +20.5 , +22.5,
  Next will be +24.5
  138 + 24.5 = 162.5

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