Directions: The following series follow some pattern. Find the number in each series which does not follow that pattern and is unfit in the seies.

1. 96.., 46.., 72.., 180.., 630.., 2835
   96
   46
   72
   180
   630
   Option B
   96 * 0.5 = 48 (not 46)

   48 * 1.5 = 72

   72 * 2.5 = 180

   180 * 3.5 = 630

   630 * 4.5 = 2835

    

2. 42…, 86…, 348…, 2094…, 16758
   42
   86
   348
   2094
   16758
   Option E
   42 * 2 + 2 = 86

   86 * 4 + 4 = 348

   348 * 6 + 6 = 2094

   2094 * 8 + 8 =16760 (16758)

    

3. 48…, 1764…, 1632.., 2622…, 2530
   48
   1764
   1632
   2622
   2530
   Option E
   48 1764 1632 2622 2532
   +12^3-12 -11^2-11 +10^3-10 -9^2-9

    

4. 1582…, 1602…, 1634…, 1690…, 1782…, 1920
   1582
   1602
   1634
   1690
   1920
   Option E
   1582 1602 1634 1690 1782 1922

   20 32 56 92 140

   12 24 36 48

    

5. 124…, 63…64…, 130.., 524.., 4200.., 67214
   63
   64
   130
   524
   67214
   Option E
   124 * 0.5 + 1 =63

   63 * 1 + 1 = 64

   64 * 2 + 2 = 130

   130 * 4 + 4 = 524

   524 * 8 + 8 = 4200

   4200 * 16 + 16 = 67216 (not 67214)

    

Directions: The following series follow some pattern. Based on the same pattern find the number in place of (?) in each series.

6. 7512.., 3756…, 1252…, ?… , 62.6
   231
   313
   455
   320
   334
   Option B
   The pattern is, ÷ 2, ÷ 3, ÷ 4, ÷ 5,….
   The answer is, 313
   

    

7. 36…, 32…, 73…, 203…, 837…, ?..
   3210
   4149
   4500
   4677
   4433
   Option B
   The pattern is, *1 – 22, *2 + 32, *3 – 42, *4 + 52, *5 – 62,….
   The answer is, 4149
   

    

8. 3278…, 5384…, 6086…, 6320…, ?… , 6424
   5678
   6740
   6398
   5566
   6889
   Option C
   3278 5384 6086 6320 6398 6424
   2106 702 234 78 26
   The difference is, ÷ 3
   The answer is, 6398
   

    

9. 819…, 818…, 408…, 135…, ?..
   31
   31.5
   32
   32.75
   33
   Option D
   The pattern is,
   (819 – 1)/1 = 818
   (818 – 2)/2 = 408
   (408 – 3)/3 = 135
   (135 – 4)/4 = 32.75
   The answer is, 32.75
   

    

10. 1276…, 1280…, 1296…, 1360…, ?… , 2640
    1212
    1313
    1414
    1515
    1616
    Option E
    The pattern is, +4^1, +4^2, +4^3, +4^4,….
    The answer is, 1616