# Quantitative Aptitude: Number Series Set 125

Directions (1-5): Find the wrong term in the series:-

1. 1.5.., 9.., 24.., 96.., 384.., 1536.
1.5
9
24
96
384
Option B
1.5 * 4 = 6
6 * 4 = 24
24 * 4 = 96
96 * 4 = 384

2. 18.., 20.., 19.., 22.., 22.., 24.., 27
18
20
19
22
24
Option E
add 1, 2…… to the alternative terms.
The wrong term is, 24

3. 11.., 12.., 25.., 76.., 304.., 1526
11
12
25
76
304
Option E
11 * 1 + 1 = 12
12 * 2 + 1 = 25
25 * 3 + 1 = 76
76 * 4 + 1 = 305
305 * 5 + 1 = 1526
1526 * 6 + 1 = 9157
The wrong term is, 304

4. 90.., 86.., 95.., 79.., 103.., 68.., 117
90
86
103
68
95
Option C
90, 86, 95, 79, 104, 68, 117
-4 +9 -16 -25 +36 -49
The difference is, â€“ 22, + 32, â€“ 42, â€“ 52, â€“ 62, â€“ 72,â€¦..
The wrong term is, 103

5. 4.., 12.., 60.., 360.., 2520.., 20160
4
12
60
360
2520
Option A
3 * 4 = 12
12 * 5 = 60
60 * 6 = 360
360 * 7 = 2520
2520 * 8 = 10160
The wrong term is, 4

6. Directions (6-10): Find the number in place of ? in the following series

7. 1.., 16.., 81…, 256…, 625…, 1296.., ..?
2401
2210
2230
2300
2450
Option A
The pattern of the series is 1^4, 2^4, 3^4, 4^4, 5^4â€¦â€¦..

8. 14.., 17.., 15.., 18.., 16.., 19.., ?
17
18
19
21
22
Option A
The pattern of the series is +3,-2, +3, -2â€¦â€¦â€¦..

9. 7380.., 4428.., 2656.8.., 1594.08.., 956.448.., 573.87.., ?
344.322
233.55
211.77
322
333.33
Option A
The pattern of the series is *3/5, *3/5, *3/5â€¦â€¦â€¦â€¦â€¦

10. 7.., 13.., 24.., 40.., 61.., ?
78
87
88
81
80
Option B
The difference of difference is 5.

11. 1.6.., 16.., 192.., 2688.., ?.., 774144..
43008
44550
42009
32008
46008
Option A
The pattern of the series is *10, *12, *14, *16â€¦â€¦â€¦â€¦â€¦

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