SSC CGL - Series Question Bank with Options

1. What is the missing number in the series: 2, 3, 6, 18, ?

A) 36

B) 54

C) 108

D) 112

2. Find the next number in the sequence: 4, 9, 25, 49, ?

A) 64

B) 81

C) 100

D) 121

3. Identify the next letter in the series: B, D, F, H, ?

A) J

B) K

C) L

D) M

4. What is the missing term in the series: 1, 4, 10, 19, 31, ?

A) 43

B) 44

C) 45

D) 46

5. Find the next number in the sequence: 1, 6, 13, 22, 33, ?

A) 44

B) 45

C) 46

D) 48

6. Determine the next number in the sequence: 2, 6, 12, 20, 30, ?

A) 38

B) 40

C) 42

D) 44

7. What is the missing number in the series: 3, 6, 11, 18, 27, ?

A) 36

B) 37

C) 38

D) 39

8. Which letter follows in the series: Y, W, U, S, ?

A) Q

B) R

C) T

D) V

9. Identify the next number in the sequence: 1, 5, 14, 30, 55, ?

A) 85

B) 91

C) 95

D) 100

10. What is the missing number in the series: 5, 10, 20, 35, 55, ?

A) 75

B) 80

C) 85

D) 90

11. Find the next number in the sequence: 6, 12, 24, 48, ?

A) 72

B) 84

C) 96

D) 108

12. Determine the next letter in the series: P, R, T, V, ?

A) X

B) Y

C) Z

D) A

13. Which number is missing in the series: 1, 3, 7, 13, 21, ?

A) 29

B) 30

C) 31

D) 33

14. What is the missing term in the series: 3, 4, 7, 11, 18, ?

A) 25

B) 27

C) 29

D) 31

15. Find the next number in the sequence: 2, 12, 30, 56, ?

A) 72

B) 80

C) 90

D) 100

16. Identify the next letter in the series: C, E, G, I, ?

A) K

B) L

C) M

D) N

17. Determine the next number in the sequence: 10, 11, 13, 17, 23, ?

A) 29

B) 31

C) 33

D) 35

18. What is the missing number in the series: 144, 121, 100, 81, ?

A) 64

B) 72

C) 77

D) 80

19. Which letter follows in the series: E, J, O, T, ?

A) U

B) V

C) W

D) X

20. Find the next number in the sequence: 50, 45, 40, 35, ?

A) 25

B) 28

C) 30

D) 32

21. What is the missing term in the series: 1, 1/2, 1/4, 1/8, ?

A) 1/10

B) 1/12

C) 1/16

D) 1/32

22. Identify the next number in the sequence: 6, 11, 21, 36, 56, ?

A) 81

B) 82

C) 83

D) 84

23. Determine the next letter in the series: W, U, S, Q, ?

A) O

B) P

C) R

D) T

24. What is the next number in the sequence: 1, 10, 100, 1000, ?

A) 10000

B) 10001

C) 11000

D) 10100

25. Find the missing number in the series: 2, 4, 6, 8, ?

A) 9

B) 10

C) 11

D) 12

26. Which letter follows in the series: D, G, J, M, ?

A) N

B) O

C) P

D) Q

27. Identify the next number in the sequence: 0, 7, 26, 63, ?

A) 120

B) 124

C) 125

D) 126

28. What is the missing term in the series: 1, 2, 4, 8, 16, ?

A) 24

B) 30

C) 32

D) 36

29. Find the next number in the sequence: 5, 15, 30, 50, 75, ?

A) 100

B) 105

C) 110

D) 115

30. Determine the next letter in the series: M, N, O, P, ?

A) Q

B) R

C) S

D) T

31. Which number is missing in the series: 2, 8, 18, 32, ?

A) 48

B) 50

C) 52

D) 54

32. What is the next number in the sequence: 15, 25, 35, 45, ?

A) 50

B) 55

C) 60

D) 65

33. Find the missing term in the series: 1, 3, 6, 10, 15, ?

A) 18

B) 20

C) 21

D) 22

34. Identify the next letter in the series: Z, X, V, T, ?

A) R

B) S

C) U

D) W

35. Determine the next number in the sequence: 3, 7, 15, 31, ?

A) 61

B) 63

C) 65

D) 67

36. What is the missing number in the series: 4, 16, 36, 64, ?

A) 81

B) 100

C) 121

D) 144

37. Which letter follows in the series: P, Q, R, S, ?

A) T

B) U

C) V

D) W

38. Find the next number in the sequence: 2, 3, 5, 7, 11, ?

A) 12

B) 13

C) 15

D) 17

39. What is the missing term in the series: 100, 90, 80, 70, ?

A) 50

B) 55

C) 60

D) 65

40. Identify the next number in the sequence: 1, 8, 27, 64, ?

A) 100

B) 125

C) 150

D) 175

41. Determine the next letter in the series: C, F, I, L, ?

A) O

B) P

C) Q

D) R

42. What is the missing number in the series: 12, 20, 30, 42, ?

A) 54

B) 56

C) 58

D) 60

43. Find the next number in the sequence: 7, 10, 15, 22, 31, ?

A) 40

B) 42

C) 44

D) 46

44. Which letter is missing in the series: Z, Y, X, W, ?

A) V

B) U

C) T

D) S

45. Identify the next number in the sequence: 1, 1, 2, 3, 5, 8, ?

A) 11

B) 13

C) 15

D) 16

46. What is the next term in the geometric progression: 2, 6, 18, 54, ?

A) 108

B) 162

C) 216

D) 243

47. Find the missing number in the series: 10, 20, 30, 40, ?

A) 45

B) 50

C) 55

D) 60

48. Which letter follows in the series: B, E, H, K, ?

A) M

B) N

C) O

D) P

49. Determine the next number in the sequence: 1, 4, 9, 16, 25, ?

A) 30

B) 36

C) 49

D) 64

50. What is the next term in the arithmetic progression: 5, 10, 15, 20, ?

A) 22

B) 24

C) 25

D) 30

Series - Question Bank