# Quantitative Aptitude: Number Series Set 128

Find the wrong term:-

1. 13.., 77.., 202.., 418.., 763â€¦, 1273
763
13
77
202
418
Option A
13 + 43 = 77
77 + 53 = 202
202 + 63 = 418
418 + 73 = 761
761 + 83 = 1273
The wrong term is 763

2. 53760â€¦, 6720.., 960.., 160.., 80…, 8
6720
960
160
80
8
Option D
53760 Ã· 8 = 6720
6720 Ã· 7 = 960
960 Ã· 6 = 160
160 Ã· 5 = 32
32 Ã· 4 = 8
The wrong term is 80

3. 80.., 120.., 300.., 1040.., 4725.., 25987.5
80
120
300
1040
4725
Option D
80 * 1.5 = 120
120 * 2.5 = 300
300 * 3.5 = 1050
1050 * 4.5 = 4725
4725 * 5.5 = 25987.5
The wrong term is 1040

4. 325.., 362.., 401.., 442.., 484.., 530
325
362
401
442
484
Option E
182 + 1 = 325
192 + 1 = 362
202 + 1 = 401
212 + 1 = 442
222 + 1 = 485
232 + 1 = 530
The wrong term is 484

5. 19.., 20.., 45.., 129.., 520.., 2605
19
20
45
129
520
Option C
19 * 1 + 1 = 20
20 * 2 + 2 = 42
42 * 3 + 3 = 129
129 * 4 + 4 = 520
520 * 5 + 5 = 2605
The wrong term is 45

6. Find the missing numbers:-

7. 56.., 92.., 67.., 83.., 74.., ?
76
78
80
82
90
Option B
56 + 62=92
92 â€“ 52 =67
67 + 42 =83
83 â€“ 32 =74
74 + 22 =78

8. 5040.., 840.., 168.., ?.., 14.., 7
40
42
44
46
48
Option B
5040 Ã· 6=840
840 Ã· 5=168
168 Ã· 4=42
42 Ã· 3=14
14 Ã· 2=7

9. 240.., 40.., ?.., 50.., 150.., 75
100
200
300
400
500
Option B
240 Ã· 6 =40
40 * 5 =200
200 Ã· 4 =50
50 * 3 =150
150 Ã· 2 =75

10. 12.., 6.., 12.., 42.., 210.., ?
1245
1365
1355
1555
1755
Option B
12 * 0.5=6
6 * 2 =12
12 * 3.5=42
42 * 5=210
210 * 6.5=1365

11. 71.., 77.., 89.., 109.., 139.., ?
181
171
197
121
131
Option A
71 + (22 + 2) =77
77 + (32 + 3) =89
89 + (42 + 4) =109
109 + (52 + 5)=139
139 + (62 + 6)=181