Quantitative Aptitude: Number Series Set 123

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
   Option D
   
   
    



3. 48.., 1764..., 1632..,. 2622..., 2530
   48
   1764
   1632
   2622
   2530
   Option E
   -12^3-12,-11^2-11.....
   
    



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
   124
   63
   64
   130
   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. 11..., 19..., 65..., 259..., 1161..., ?
   4321
   5421
   6021
   1161
   2121
   Option C
   11 x 1 + 23 = 19
   19 x 2 + 33 = 65
   65 x 3 + 43 = 259
   259 x 4 + 53 = 1161
   1161 x 5 + 63 = 6021
   
   
    



7. 8.., 50..., 295.., ? ..., 5881..., 17641
   1471
   534
   821
   456
   1231
   Option A
   8 x 7 – 6 = 50
   50 x 6 – 5 = 295
   295 x 5 – 4 = 1471
   1471 x 4 – 3 = 5881
   5881 x 3 – 2 = 17641
   
   
    



8. 10.., 15.., 35.., 82.5.., ?.., 562.5
   200
   205
   450
   230
   320
   Option B
   10 x 0.5 + 10 = 15
   15 x 1 + 20 = 35
   35 x 1.5 + 30 = 82.5
   82.5 x 2 + 40 = 205
   205 x 2.5 + 50 = 562.5
   
   
    



9. 1000.., 501..., 170.., 47.5.., ?
   12.7
   14.6
   16.5
   12
   11
   Option C
   1000 ÷ 2 + 1 = 501
   501 ÷ 3 + 3 = 170
   170 ÷ 4 + 5 = 47.5
   47.5 ÷ 5 + 7 = 16.5
   
   
    



10. 11.., 28.., 39.., 104.., ?.. , 276..
    34
    12
    75
    22
    15
    Option C
    10 + 12 = 11
    20 + 23 = 28
    30 + 32 = 39
    40 + 43 = 104
    50 + 52 = 75
    60 + 63 = 276