Quantitative Aptitude: Number Series Set 112

Directions(1-10): Find the missing term '?' of the following number series.

1. 5, 6, 16, 57, ?, 1245
   250
   220
   236
   244
   275
   Option D
   5 × 1 + l^2 = 5 + 1 = 6
   6 × 2 + 2^2 = 12 + 4 = 16
   16 × 3 + 3^2 = 48 + 9 = 57
   57 × 4 + 4^2 = 228 + 16 = 244
   
   
    



2. 224, 576, 752, 840, 884, ?
   880
   780
   906
   850
   900
   Option C
   576 - 224 = 352
   752 - 576 = 176
   840 - 752 = 88
   884 - 840 = 44
   ? = 884 + 22 = 906
   
   
    



3. 24, 536, 487, 703, 678, ?
   710
   700
   725
   742
   750
   Option D
   24 + 8^3 = 24 + 512 = 536
   536 – 7^2 = 536 - 49 = 487
   487 + 6^3 = 487 + 216 = 703
   703 – 5^2 = 703 - 25 = 678
   678 + 4^3 = 678 + 64 = 742
   
   
    



4. 36, 154, 232, 278, 300, ?
   315
   320
   362
   370
   306
   Option E
   154 - 36 = 118
   232 - 154 = 78
   278 - 232 = 46
   300 - 278 = 22
   ? - 300 = 6
   ? = 306
   
   
    



5. 23, 42.2, 80.6, 157.4, 311, ?
   912.8
   618.2
   741.9
   612.7
   512.5
   Option B
   23 + 1 × 19.2 = 42.2
   42.2 + 2 × 19.2 = 80.6
   80.6 + 4 × 19.2 = 157.4
   157.4 + 8 × 19.2 = 311
   311 + 16 × 19.2 = 311 + 307.2
   = 618.2
   
   
    



6. 456.5, 407, 368.5, 341, 324.5, ?
   333
   319
   300
   315
   340
   Option B
   456.5 - 407 = 49.5
   407 - 368.5 = 38.5
   368.5 - 341 = 27.5
   341 - 324.5 = 16.5
   ? = 324.5 - 5.5 = 319
   
   
    



7. 123, 277, 459, 669, 907, ?
   1173
   1250
   1550
   1235
   1352
   Option A
   123 + 11 × 14 = 123 + 154 = 277
   277 + 13 × 14 = 277 + 182 = 459
   459 + 15 × 14 = 459 + 210 = 669
   669+ 17 × 14 = 669 + 238 = 907
   907 + 19 × 14 = 907 + 266
   = 1173
   
   
    



8. 2, 5, 9, ?, 20, 27
   16
   12
   14
   13
   10
   Option C
   2 + 3 = 5
   5 + 4 = 9
   6 + 5 = 14
   14 + 6 = 20
   20 + 7 = 27
   
   
    



9. 121, 144, 190, 259, ?, 466
   342
   330
   362
   351
   348
   Option D
   121 + 23 × 1 = 144
   144 + 23 × 2 = 190
   190 + 23 × 3 = 259
   ? = 259 + 23 × 4 = 259 + 92 = 351
   
   
    



10. 1548, 516, 129, 43, ?
    14.25
    12.25
    10.75
    13.31
    16.68
    Option C
    1548/ 3 = 516
    516 / 4 = 129
    129 / 3 = 43
    43 / 4 = 10.75