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Wednesday, August 26, 2020

NUMBER SERIES : 3

 NUMBER SERIES : 3

  1. 5 14 46 165 ? 3525
    A. 716
    B. 736
    C. 746
    D. 696
    E. None of these
    Answer – D. 696
    Explanation :
    (5 * 1) + (1 * 9) = 14
    (14 * 2) + (2 * 9) = 46…..

  2. 3 2 3 6 14 ? 116
    A. 37.5
    B. 47.5
    C. 43.6
    D. 36.8
    E. None of these
    Answer – A. 37.5
    Explanation :
    3 * 0.5 + 0.5 = 2
    2 * 1 + 1 = 3
    3 * 1.5 + 1.5 = 6…..

  3. 3 8 27 76 ? 696 2099
    A. 245
    B. 235
    C. 275
    D. 255
    E. None of these
    Answer – B. 235
    Explanation :
    3 * 3 – 1 = 8
    8 * 3 + 3 = 27
    27 * 3 – 5 = 76…..

  4. 972 488 242 123 ? 31.75 13.875
    A. 54.5
    B. 69.5
    C. 87.5
    D. 59.5
    E. None of these
    Answer – D. 59.5
    Explanation :
    972 / 2 + 2 = 488
    488 / 2 – 2 = 242
    242 / 2 + 2 = 123…..

  5. 5 293 437 ? 545 563 572
    A. 457
    B. 592
    C. 509
    D. 529
    E. None of these
    Answer – C. 509
    Explanation :
    5 + 9 * 32 = 293
    293 + 9 * 16 = 437
    437 + 9 * 8 = 509….

  6. 5 12 40 ? 212 387 639
    A. 123
    B. 103
    C. 153
    D. 113
    E. None of these
    Answer – B. 103
    Explanation :
    5 + 7 * 1² = 12
    12 + 7 * 2² = 40
    40 + 7 * 3² = 103…..

  7. 717 522 335 ? 121 66 
    A. 222
    B. 232
    C. 242
    D. 252
    E. None of these
    Answer – A. 222
    Explanation :
    9³ – 12 = 717
    8³ + 10 = 522
    7³ – 8 = 335……

  8. 2394, 1290, 620, 252, 78, ?
    A. 10
    B. 12
    C. 14
    D. 18
    E. None of these
    Answer – C. 14
    Explanation :
    7^4 – 7, 6^4 – 6, 5^4 – 5, 4^4 – 4…

  9. 15 25 34 ? 464 2330 13980
    A. 240
    B. 420
    C. 150
    D. 120
    E. None of these
    Answer – D. 120
    Explanation :
    (15 * 1 ) + (1 * 10) = 25
    (25 * 2 ) – (2 * 8) = 34
    (34 * 3 ) + (3 * 6) = 120
    (120 * 4) – (4 * 4) = 464
    (464 * 5) + (5 * 2) = 2330
    (2330 * 6) – (6 * 0) = 13980

  10. 2580 2582 5160 15486 61936 ?  
    A. 309690
    B. 409670
    C. 509670
    D. 209670
    E. None of these
    Answer – A. 309690
    Explanation :
    2580 * 1 + 2= 2582
    2582 * 2 – 4 = 5160
    5160 * 3 + 6 = 15486
    15486 * 4 – 8 = 61936 …..
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