# 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)

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

7. 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

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

9. 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

10. 1000.., 501…, 170.., 47.5.., ?
12.7
14.6
16.5
12
11
Option C
1000 Ã· 2 + 1 = 501
501 Ã· 3 + 3 = 170
170 Ã· 4 + 5 = 47.5
47.5 Ã· 5 + 7 = 16.5

11. 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