## Number Series

#### Number Series

1. 12, 18, 36, 102, 360 ?
1. 1364
2. 1386
3. 1384
4. 1376
5. None of these

1. The pattern of the number series is given as follows:
12 x 4 - 30 = 48 - 30 = 18
18 x 4 - 36 = 72 - 36 = 36
36 x 4 - 42 = 144 - 42 = 102
102 x 4 - 48 = 408 - 48 = 360
360 x 4 - 54 = 1440 - 54 = 1386

##### Correct Option: B

The pattern of the number series is given as follows:
12 x 4 - 30 = 48 - 30 = 18
18 x 4 - 36 = 72 - 36 = 36
36 x 4 - 42 = 144 - 42 = 102
102 x 4 - 48 = 408 - 48 = 360
360 x 4 - 54 = 1440 - 54 = 1386

Direction: In each of these questions, a number series is given. In each series, only one number is wrong. Find out the wrong number.

1. 7, 12, 40, 222, 1742, 17390, 208608
1. 7
2. 12
3. 40
4. 1742
5. 208608

1. The pattern of number series is as follows :
7 x 2 - 2 = 12
12 x 4 - (2 + 6) = 48 - 8 = 40
40 x 6 - (8 + 10) = 240 - 18 = 222
222 x 8 - (18 + 14) = 1776 - 32 = 1744 ≠ 1742
1744 x 10 - (32 + 18) = 17440-50=17390

##### Correct Option: D

The pattern of number series is as follows :
7 x 2 - 2 = 12
12 x 4 - (2 + 6) = 48 - 8 = 40
40 x 6 - (8 + 10) = 240 - 18 = 222
222 x 8 - (18 + 14) = 1776 - 32 = 1744 ≠ 1742
1744 x 10 - (32 + 18) = 17440-50=17390

1. 6, 91, 584, 2935, 11756, 35277, 70558
1. 91
2. 70558
3. 584
4. 2935
5. 35277

1. The pattern of series is as follows :
6 x 7 + 72 = 42 + 49 = 91
91 x 6 + 62 = 546 + 36 = 582 ≠ 584
582 x 5 + 52 = 2910 + 25 = 2935
2935 x 4 + 4,sup>2 = 11740 + 16 = 11756
11756 x 3 + 32 =35268 + 9 = 35277

##### Correct Option: C

The pattern of series is as follows :
6 x 7 + 72 = 42 + 49 = 91
91 x 6 + 62 = 546 + 36 = 582 ≠ 584
582 x 5 + 52 = 2910 + 25 = 2935
2935 x 4 + 4,sup>2 = 11740 + 16 = 11756
11756 x 3 + 32 =35268 + 9 = 35277

1. 9050, 5675, 3478, 2147, 1418, 1077, 950
1. 3478
2. 1418
3. 5675
4. 2147
5. 1077

1. The pattern of number series is follows:
9050 - 153 = 9050 - 3375 = 5675
5675 - 133 = 5675 - 2197 = 3478
3478 - 113 = 3478 - 1331 = 2147
2147 - 93 = 2147 - 729 = 1418
1418 - 73 = 1418 - 343 = 1075 ≠1077

##### Correct Option: E

The pattern of number series is follows:
9050 - 153 = 9050 - 3375 = 5675
5675 - 133 = 5675 - 2197 = 3478
3478 - 113 = 3478 - 1331 = 2147
2147 - 93 = 2147 - 729 = 1418
1418 - 73 = 1418 - 343 = 1075 ≠1077

Direction: What should come in place of the question mark (?) in the following questions?

1. 325, 314, 288, 247, 191?
1. 126
2. 116
3. 130
4. 120
5. None of these

1. 120

120