- Look at this series: 2, 1, (1/2), (1/4), ... What number should come next?

A. (1/3)

B. (1/8)

C. (2/8)

D. (1/16) - Look at this series: 1.5, 2.3, 3.1, 3.9, ... What number should come next?

A. 4.2

B. 4.4

C. 4.7

D. 5.1 - Look at this series: 7, 10, 8, 11, 9, 12, ... What number should come next?

A. 7

B. 10

C. 12

D. 13 - Look at this series: 3, 4, 7, 8, 11, 12, ... What number should come next?

A. 7

B. 10

C. 14

D. 15 - Look at this series: 31, 29, 24, 22, 17, ... What number should come next?

A. 15

B. 14

C. 13

D. 12 - Look at this series: 14, 28, 20, 40, 32, 64, ... What number should come next?

A. 52

B. 56

C. 96

D. 128 - Look at this series: 22, 21, 23, 22, 24, 23, ... What number should come next?

A. 22

B. 24

C. 25

D. 26 - Look at this series: 53, 53, 40, 40, 27, 27, ... What number should come next?

A. 12

B. 14

C. 27

D. 53 - Look at this series: 21, 9, 21, 11, 21, 13, 21, ... What number should come next?

A. 14

B. 15

C. 21

D. 23 - Look at this series: 8, 22, 8, 28, 8, ... What number should come next?

A. 9

B. 29

C. 32

D. 34 - Look at this series: 36, 34, 30, 28, 24, ... What number should come next?

A. 20

B. 22

C. 23

D. 26 - Look at this series: 58, 52, 46, 40, 34, ... What number should come next?

A. 26

B. 28

C. 30

D. 32 - Look at this series: 201, 202, 204, 207, ... What number should come next?

A. 205

B. 208

C. 210

D. 211 - Look at this series: 544, 509, 474, 439, ... What number should come next?

A. 404

B. 414

C. 420

D. 445 - Look at this series: 1,000, 200, 40, ... What number should come next?

A. 8

B. 10

C. 15

D. 20 - Look at this series: 4, ..., 14, 40, 88, 170. What number should come next?

A. 6

B. 8

C. 10

D. 12 - Look at this series: 6, 6, 7, ..., 91, 463. What number should come next?

A. 25

B. 33

C. 38

D. 43 - Look at this series: 2, 5, 17, 50, 122, ... What number should come next?

A. 225

B. 242

C. 252

D. 257 - Look at this series: 4, 4, 6, 12, 30, ... What number should come next?

A. 90

B. 92

C. 95

D. 98 - Look at this series: 1, 2, 6, 17, ..., 157.5. What number should come next?

A. 40.5

B. 42.5

C. 49.5

D. 50.5