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Home Verbal Reasoning Number Series Comments

  • Question
  • 7, 12, 40, 222, 1742, 17390, 208608


  • Options
  • A. 7
  • B. 12
  • C. 40
  • D. 1742

  • Correct Answer
  • 1742 

    Explanation

    The pattern of number series is as follows :
    7 x 2 - 2 = 12
    12 x 4 - (2 + 6) = 48 - 8 = 40
    40 x 6 - (8 + 10) = 240 - 18 = 222
    222 x 8 - (18 + 14) = 1776 - 32 = 1744 ? 1742
    1744 x 10 - (32 + 18) = 17440-50=17390


  • Number Series problems


    Search Results


    • 1. 
      12, 18, 36, 102, 360?

    • Options
    • A. 1364
    • B. 1386
    • C. 1384
    • D. 1376
    • Discuss
    • 2. 
      454, 472, 445, 465, 463, 436?

    • Options
    • A. 436
    • B. 456
    • C. 454
    • D. 434
    • Discuss
    • 3. 
      13, 25, 61, 121, 205

    • Options
    • A. 323
    • B. 326
    • C. 324
    • D. 313
    • Discuss
    • 4. 
      8, 10, 18, 44, 124?

    • Options
    • A. 344
    • B. 366
    • C. 354
    • D. 356
    • Discuss
    • 5. 
      What should come next in the following number series?
      9 8 7 6 1 2 3 4 5 9 8 7 1 2 3 4 5 9 8 7 1 2 3 4 9 8

    • Options
    • A. 7
    • B. 1
    • C. 2
    • D. 5
    • Discuss
    • 6. 
      6, 91, 584, 2935, 11756, 35277, 70558

    • Options
    • A. 91
    • B. 70558
    • C. 584
    • D. 2935
    • Discuss
    • 7. 
      9050, 5675, 3478, 2147, 1418, 1077, 950

    • Options
    • A. 3478
    • B. 1418
    • C. 5675
    • D. 2147
    • Discuss
    • 8. 
      325, 314, 288, 247, 191?

    • Options
    • A. 126
    • B. 116
    • C. 130
    • D. 120
    • Discuss
    • 9. 
      45, 46, 70, 141,?, 1061.5

    • Options
    • A. 353
    • B. 353.5
    • C. 352.5
    • D. 352
    • Discuss
    • 10. 
      620, 632, 608, 644, 596?

    • Options
    • A. 536
    • B. 556
    • C. 656
    • D. 646
    • Discuss


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