# Quantitative Aptitude: Number Series Set 132

Directions: The following number series are based on a certain pattern. One number out of all is incorrect and does not follow the pattern. Find that odd one out.

1. 1, 10, 63, 699, 9139
1
10
63
699
9139
Option D
1 * 5 +5 = 10
10*7 -7 = 63
63 *11+11=704
704*13-13=9139

2. 107, 423, 955, 1709 , 2660
107
423
955
1709
2660
Option E
102 â€“ 12 + 23 =107
202 â€“ 22 + 33 = 423
302 â€“ 32 + 43 = 955
402 â€“42 + 53 = 1709
502 â€“ 52 + 63= 2691(not2660)

3. 14, 31, 65, 130, 269
14
31
65
130
269
Option D
2*14 +3 = 31
2* 31 +3= 65
2*65+3= 133(not 130)
2* 133 +3=269

4. 7, 10, 10, 5, -5, -28
7
10
5
-5
-28
Option D
7+ 4^2 â€“ 3^2 â€“ 2^2 = 10
10+ 5^2 â€“ 4^2 â€“ 3^2 =10
5+ 6^2 â€“ 5^2 â€“ 4^2 = 5
5+ 7^2 â€“ 6^2 â€“ 5^2 = -7(not -5)
-7+ 8^2- 7^2- 6^2 = -28

5. 0, 28, 180, 648, 1520
0
28
180
648
1520
Option E
1^3+ 3^3+0 = 28
3^3 + 5^3 +28= 180
5^3 + 7^3 +180= 648
7^3 + 9^3 +648= 1720 (not 1520)

6. 200,190,156, 82 ,10, -338
200
190
156
82
10
Option E
200- (12 + 32 ) = 190
190 â€“ (32 + 52 ) = 156
1 56 â€“(52 + 72 ) = 82
82 â€“( 72 + 92 ) = -48(not 10)
-48 â€“ (112 +1 32 ) = -338

7. 60 , 66 , 110 , 198, 264
60
66
110
198
264
Option C
60 + 6= 66
60+ 66+6=132 (not 110)
60+ 132+6= 198
60+198+6= 264

8. 20.5, 26.5, 29.5 , 19.5, 26.5
20.5
26.5
29.5
19.5
26.6
Option C
20.5 + 7.5 â€“ 1.5= 26.5
26.5 + 5.5 â€“ 2.5=29.5
29.5+ 3.5 -3.5 = 29.5 (not 19.5)
29.5 +1.5 â€“ 4.5= 26.5

9. 84, 42.5, 41, 42.5, 17, 36.5
84
42.5
41
42.5
17
Option D
84/2 +0.5 = 42.5
42.5 -1.5 = 41
84/2 +0.5 = 42.5
41/2 -3.5 = 17
84/2 +0.5 = 42.5(not 36.5)

10. 2, 12 , 8 , 6, 512, 4
2
12
8
6
4
Option E
Odd place number = triple of previous odd place number
Even place number = half of previous even place number

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