# Number Series

1. In the series: 4, 7, 12, 19, 28, ... What number should come next?

A. 49

B. 36

C. 30

D. 39

Explanation:

First term : 4
Second term: 4 + 3 = 7
Third term : 7 + 5 = 12
Fourth term : 12 + 7 = 19.
Fifth term : 19 + 9 = 28.
Therefore,
Next Terms : 28 + 11 = 39

2. In the series: 8, 28, 116, 584,... What number should come next?

A. 3502

B. 3504

C. 3506

D. 3508

Explanation:

(8 *3) + 4 = 28
(28 *4) + 4 = 116
(116 *5) + 4 = 584
(584 *6) + 4 = 3508

3. In the series: 8, 28, 116, 584,... What number should come next?

A. 3502

B. 3504

C. 3506

D. 3508

Explanation:

(8 *3) + 4 = 28
(28 *4) + 4 = 116
(116 *5) + 4 = 584
(584 *6) + 4 = 3508

4. In the series: 3, 7, 23, 95,... What number should come next?

A. 68

B. 256

C. 479

D. 497

Explanation:

1st number = 3
2nd number = 3 x 2 + 1 = 7
3rd number = 7 x 3 + 2 = 23
4th number = 23 x 4 + 3 = 95
5th number = 95 x 5 + 4 = 479

5. In the series: 1, 1, 4, 9, 27, 16,... What number should come next?

A. 32

B. 64

C. 128

D. 81