Pattern searching

1. Look at this series: 3, 6, 9, 12, 15,...   What number should come next?

a. 16

b. 18

c. 19

d.21

2. Look at this series: 66, 59, 52, 45, 38,...  What number should come next?

a.31

b.32

c.35

d.41

3. Look at this series: 44, 44, 50, 50, 56... What number should come next?

a.44

b.48

c.56

d.62

4. Look at this series: 102, 103, 105, 108, … What number should come next?

a.106 

b.109

c.111

d.112

5. Look at this series: 567, 542, 517, 492, … What number should come next?

a. 467

b. 477

c. 483

d. 499

6. 74 66 58 50 42 34 26

a. 20 12

b. 18 8

c. 20 10

d. 18 10

e. 16 8

7. 2 7 12 17 22 27 32

a. 38 42

b. 37 42

c. 37 43

d. 36 42

e. 32 37

8. 19 19 17 17 15 15 13

a. 11 11

b. 13 13

c. 13 15

d. 11 12

e. 13 11

9. 21 24 30 21 36 42 21

a. 54 21

b. 50 56

c. 48 21

d. 46 54

e. 48 54

10. 9 11 33 13 15 33 17

a. 19 33

b. 33 35

c. 33 19

d. 15 33

e. 19 21

11. 44 41 38 35 32 29 26

a. 24 21

b. 22 19

c. 23 19

d. 29 32

e. 23 20

12. 6 10 14 18 22 26 30

a. 36 40

b. 33 37

c. 38 42

d. 34 36

e. 34 38

13. 34 30 26 22 18 14 10

a. 4 6

b. 6 4

c. 14 18

d. 6 2

e. 4 0

14. 2 44 4 41 6 38 8

a. 10 12

b. 35 32

c. 34 9

d. 35 10

e. 10 52

15. 32 29 26 23 20 17 14

a. 11 8

b. 12 8

c.11 7

d.32 29

e.10 9

16. Look at this series:J14, L16, __, P20, R22, What number should fill the blank?

a. S24

b. N18

c. M18

d. T24

17. Look at this series: F2, __, D8, C16, B32, What number should fill the blank?

a. A16

b. G4

c. E4

d. E3

18. Look at this series: V, VIII, XI, XIV, __, XX, What number should fill the bank?

a. XI

b. XXIII

c. XV

d. XVII

19. Look at this series: XXIV, XX, __, XII, VIII, What number should fill the blank?

a. XXII

b. XIII

c. XVI

d. IV

20. Look at this series: VI, 10, V, 11, __, 12, III, What number should fill the blank?

a. II

b. IV

c. IX

d. 14