Number Series MCQs

Solved Number Series MCQs with answers and explanations. Free practice questions for PPSC, FPSC, CSS and other government job exams on FreeSekho.

1. 1. Find the next number: 3, 8, 18, 38, 78, ?

   1. 138
   2. 148
   3. 158 ✓
   4. 168

2. 2. Find the next number: 2, 6, 15, 31, 56, ?

   1. 82
   2. 87
   3. 92 ✓
   4. 97

3. 3. Find the next number: 1, 2, 6, 21, 88, ?

   1. 350
   2. 400
   3. 445 ✓
   4. 460

4. 4. Find the next number: 4, 10, 22, 46, 94, ?

   1. 180
   2. 186
   3. 190 ✓
   4. 192

5. 5. Find the next number: 7, 21, 43, 73, 111, ?

   1. 147
   2. 157 ✓
   3. 157
   4. 159

6. 6. Find the next number: 5, 9, 17, 33, 65, ?

   1. 97
   2. 121
   3. 129 ✓
   4. 131

7. 7. Find the next number: 2, 5, 12, 27, 58, ?

   1. 119
   2. 121 ✓
   3. 123
   4. 125

8. 8. Find the next number: 1, 4, 15, 64, 325, ?

   1. 1956 ✓
   2. 1957
   3. 1958
   4. 1960

9. 9. Find the next number: 6, 14, 30, 62, 126, ?

   1. 250
   2. 252
   3. 254 ✓
   4. 256

10. 10. Find the next number: 2, 12, 36, 80, 150, ?

    1. 240
    2. 252 ✓
    3. 260
    4. 270

11. 11. Find the missing number: 2, 6, 18, ?, 162

    1. 48
    2. 52
    3. 54 ✓
    4. 56

12. 12. Find the missing number: 5, 11, 23, ?, 95

    1. 45
    2. 46
    3. 47 ✓
    4. 48

13. 13. Find the missing number: 3, 10, 29, ?, 255

    1. 84
    2. 86
    3. 88 ✓
    4. 90

14. 14. Find the missing number: 1, 5, 17, ?, 257

    1. 61
    2. 65 ✓
    3. 69
    4. 73

15. 15. Find the next number: 2, 3, 7, 25, 121, ?

    1. 601
    2. 721 ✓
    3. 841
    4. 961

16. 16. Find the next number: 10, 13, 19, 28, 40, ?

    1. 53
    2. 55 ✓
    3. 56
    4. 58

17. 17. Find the next number: 1, 8, 27, 64, 125, ?

    1. 196
    2. 216 ✓
    3. 225
    4. 256

18. 18. Find the next number: 2, 9, 28, 65, 126, ?

    1. 210
    2. 217 ✓
    3. 220
    4. 225

19. 19. Find the next number: 1, 3, 13, 61, 301, ?

    1. 1501 ✓
    2. 1503
    3. 1505
    4. 1507

20. 20. Find the next number: 8, 24, 12, 36, 18, 54, ?

    1. 24
    2. 27 ✓
    3. 30
    4. 36

21. 21. Find the next number: 3, 7, 15, 31, 63, ?

    1. 95
    2. 111
    3. 127 ✓
    4. 129

22. 22. Find the next number: 1, 2, 5, 16, 65, ?

    1. 261
    2. 326 ✓
    3. 391
    4. 521

23. 23. Find the next number: 4, 6, 13, 15, 22, 24, ?

    1. 29
    2. 31 ✓
    3. 33
    4. 35

24. 24. Find the next number: 100, 96, 88, 76, 60, ?

    1. 36
    2. 40 ✓
    3. 42
    4. 44

25. 25. Find the next number: 2, 7, 16, 29, 46, ?

    1. 65
    2. 66
    3. 67 ✓
    4. 68

26. 26. Find the next number: 1, 10, 100, 1000, 10000, ?

    1. 100000 ✓
    2. 100001
    3. 110000
    4. 1000000

27. 27. Find the next number: 11, 24, 50, 102, 206, ?

    1. 410
    2. 414 ✓
    3. 416
    4. 418

28. 28. Find the next number: 3, 6, 11, 18, 27, ?

    1. 36
    2. 38 ✓
    3. 39
    4. 40

29. 29. Find the next number: 1, 4, 10, 22, 46, ?

    1. 90
    2. 92
    3. 94 ✓
    4. 96

30. 30. Find the next number: 12, 11, 13, 10, 14, 9, ?

    1. 15 ✓
    2. 16
    3. 17
    4. 18

31. 31. Find the next number: 2, 8, 18, 32, 50, ?

    1. 68
    2. 70
    3. 72 ✓
    4. 74

32. 32. Find the next number: 5, 12, 25, 54, 111, ?

    1. 220
    2. 224
    3. 226
    4. 228 ✓

33. 33. Find the next number: 1, 2, 6, 24, 120, ?

    1. 600
    2. 720 ✓
    3. 840
    4. 960

34. 34. Find the next number: 2, 6, 24, 120, 720, ?

    1. 4320
    2. 5040 ✓
    3. 5760
    4. 6480

35. 35. Find the next number: 1, 2, 3, 5, 8, 13, 21, ?

    1. 31
    2. 32
    3. 34 ✓
    4. 35

36. 36. Find the next number: 4, 9, 19, 39, 79, ?

    1. 149
    2. 159 ✓
    3. 169
    4. 179

37. 37. Find the next number: 81, 28, 9, 3, 1, ?

    1. 0
    2. 1/3 ✓
    3. 1/2
    4. 1

38. 38. Find the next number: 2, 4, 10, 28, 82, ?

    1. 244
    2. 246
    3. 248 ✓
    4. 250

39. 39. Find the next number: 6, 18, 54, 162, ?

    1. 324
    2. 432
    3. 486 ✓
    4. 648

40. 40. Find the next number: 1, 7, 19, 37, 61, ?

    1. 85
    2. 91 ✓
    3. 95
    4. 97

41. 41. Find the next number: 4, 7, 13, 25, 49, ?

    1. 73
    2. 85
    3. 97 ✓
    4. 99

42. 42. Find the next number: 2, 3, 5, 9, 17, ?

    1. 25
    2. 31
    3. 33 ✓
    4. 35

43. 43. Find the next number: 3, 12, 48, 192, ?

    1. 576
    2. 672
    3. 768 ✓
    4. 864

44. 44. Find the next number: 9, 17, 33, 65, ?

    1. 97
    2. 113
    3. 129 ✓
    4. 145

45. 45. Find the next number: 2, 10, 30, 68, 130, ?

    1. 200
    2. 210
    3. 222 ✓
    4. 230

46. 46. Find the next number: 1, 6, 15, 28, 45, ?

    1. 60
    2. 64
    3. 66 ✓
    4. 68

47. 47. Find the next number: 1, 11, 21, 31, 41, ?

    1. 49
    2. 50
    3. 51 ✓
    4. 52

48. 48. Find the next number: 2, 5, 10, 17, 26, ?

    1. 35
    2. 36
    3. 37 ✓
    4. 38

49. 49. Find the next number: 3, 5, 9, 17, 33, ?

    1. 49
    2. 57
    3. 65 ✓
    4. 73

50. 50. Find the next number: 8, 10, 14, 22, 38, ?

    1. 62
    2. 68
    3. 70 ✓
    4. 72

51. 51. Find the next number: 1, 3, 12, 60, 360, ?

    1. 2160
    2. 2520 ✓
    3. 2880
    4. 3240

52. 52. Find the next number: 100, 50, 25, 12.5, ?

    1. 5.25
    2. 6.25 ✓
    3. 7.25
    4. 8.25

53. 53. Find the next number: 1, 4, 13, 40, 121, ?

    1. 360
    2. 363
    3. 364 ✓
    4. 365

54. 54. Find the next number: 7, 14, 12, 24, 22, 44, ?

    1. 40
    2. 42 ✓
    3. 44
    4. 46

55. 55. Find the next number: 3, 4, 7, 12, 19, ?

    1. 26
    2. 27
    3. 28 ✓
    4. 29

56. 56. Find the next number: 20, 18, 15, 11, 6, ?

    1. 0 ✓
    2. 1
    3. 2
    4. 3

57. 57. Find the next number: 2, 3, 6, 11, 18, 27, ?

    1. 36
    2. 38 ✓
    3. 39
    4. 40

58. 58. Find the next number: 5, 6, 8, 11, 15, 20, ?

    1. 24
    2. 25
    3. 26 ✓
    4. 27

59. 59. Find the next number: 30, 28, 24, 18, 10, ?

    1. 0 ✓
    2. 1
    3. 2
    4. 3

60. 60. Find the next number: 10, 9, 7, 4, 0, ?

    1. -5 ✓
    2. -4
    3. -3
    4. -2

61. 61. Find the next number: 2, 4, 7, 11, 16, 22, ?

    1. 27
    2. 28
    3. 29 ✓
    4. 30

62. 62. Find the next number: 1, 5, 14, 30, 55, ?

    1. 81
    2. 91 ✓
    3. 101
    4. 111

63. 63. Find the next number: 13, 17, 21, 25, 29, ?

    1. 31
    2. 32
    3. 33 ✓
    4. 34

64. 64. Find the next number: 256, 128, 64, 32, 16, ?

    1. 4
    2. 6
    3. 8 ✓
    4. 10

65. 65. Find the next number: 1, 9, 25, 49, 81, ?

    1. 100
    2. 111
    3. 121 ✓
    4. 144

66. 66. Find the next number: 1, 4, 9, 16, 25, 36, ?

    1. 42
    2. 45
    3. 49 ✓
    4. 56

67. 67. Find the next number: 2, 8, 32, 128, ?

    1. 256
    2. 384
    3. 512 ✓
    4. 640

68. 68. Find the next number: 5, 25, 125, 625, ?

    1. 1250
    2. 2500
    3. 3125 ✓
    4. 6250

69. 69. Find the next number: 3, 8, 15, 24, 35, ?

    1. 46
    2. 48 ✓
    3. 50
    4. 52

70. 70. Find the next number: 1, 4, 9, 16, 25, ?

    1. 30
    2. 32
    3. 36 ✓
    4. 49

71. 71. Find the next number: 10, 20, 19, 38, 37, 74, ?

    1. 72
    2. 73 ✓
    3. 75
    4. 76

72. 72. Find the next number: 50, 47, 43, 38, 32, ?

    1. 23
    2. 24
    3. 25 ✓
    4. 26

73. 73. Find the next number: 90, 81, 73, 66, 60, ?

    1. 54
    2. 55 ✓
    3. 56
    4. 57

74. 74. Find the next number: 1, 2, 4, 7, 11, 16, ?

    1. 20
    2. 21
    3. 22 ✓
    4. 23

75. 75. Find the next number: 10, 13, 18, 25, 34, ?

    1. 43
    2. 45 ✓
    3. 46
    4. 47

76. 76. Find the next number: 2, 6, 14, 30, 62, ?

    1. 94
    2. 110
    3. 126 ✓
    4. 130

77. 77. Find the next number: 1, 2, 5, 14, 41, ?

    1. 120
    2. 122 ✓
    3. 124
    4. 126

78. 78. Find the next number: 4, 16, 36, 64, 100, ?

    1. 121
    2. 132
    3. 144 ✓
    4. 156

79. 79. Find the next number: 1, 8, 27, 64, 125, 216, ?

    1. 289
    2. 343 ✓
    3. 400
    4. 512

80. 80. Find the next number: 6, 11, 21, 41, 81, ?

    1. 121
    2. 141
    3. 161 ✓
    4. 181

81. 81. Find the next number: 2, 7, 14, 23, 34, 47, ?

    1. 60
    2. 62 ✓
    3. 64
    4. 66

82. 82. Find the next number: 3, 6, 12, 24, 48, ?

    1. 72
    2. 84
    3. 96 ✓
    4. 98

83. 83. Find the next number: 2, 5, 11, 23, 47, ?

    1. 93
    2. 95 ✓
    3. 97
    4. 99

84. 84. Find the next number: 4, 6, 12, 14, 28, 30, ?

    1. 58
    2. 60 ✓
    3. 62
    4. 64

85. 85. Find the next number: 7, 10, 8, 11, 9, 12, ?

    1. 10 ✓
    2. 11
    3. 12
    4. 13

86. 86. Find the next number: 1, 2, 6, 15, 31, 56, ?

    1. 81
    2. 86
    3. 92 ✓
    4. 97

87. 87. Find the next number: 2, 10, 28, 60, 110, ?

    1. 170
    2. 180
    3. 182 ✓
    4. 190

88. 88. Find the next number: 100, 80, 64, 51.2, ?

    1. 40.96 ✓
    2. 41.96
    3. 42.96
    4. 43.96

89. 89. Find the next number: 2, 4, 12, 48, 240, ?

    1. 1200
    2. 1440 ✓
    3. 1680
    4. 1800

90. 90. Find the next number: 1, 4, 18, 96, 600, ?

    1. 3600
    2. 4200
    3. 4320 ✓
    4. 5040

91. 91. Find the next number: 6, 24, 60, 120, 210, ?

    1. 300
    2. 330
    3. 336 ✓
    4. 360

92. 92. Find the next number: 11, 22, 44, 88, 176, ?

    1. 330
    2. 342
    3. 352 ✓
    4. 364

93. 93. Find the next number: 2, 14, 48, 110, 208, ?

    1. 330
    2. 350 ✓
    3. 352
    4. 360

94. 94. Find the next number: 1, 2, 12, 144, ?

    1. 1728 ✓
    2. 1440
    3. 1296
    4. 2880

95. 95. Find the next number: 4, 20, 120, 840, ?

    1. 5040 ✓
    2. 5880
    3. 6720
    4. 7560

96. 96. Find the next number: 2, 3, 7, 25, 121, 721, ?

    1. 4321
    2. 5041 ✓
    3. 5761
    4. 6481

97. 97. Find the next number: 1, 2, 5, 16, 65, 326, ?

    1. 1631
    2. 1957 ✓
    3. 2283
    4. 2610

98. 98. Find the next number: 4, 10, 22, 46, 94, 190, ?

    1. 378
    2. 380
    3. 382 ✓
    4. 384

99. 99. Find the next number: 3, 10, 29, 88, 263, ?

    1. 788
    2. 790 ✓
    3. 791
    4. 792

100. 100. Find the next number: 2, 5, 14, 41, 122, ?

     1. 243
     2. 365
     3. 366 ✓
     4. 368

101. 101. In the series 3, 7, 11, 15, ... what is the 8th term?

     1. 27
     2. 29
     3. 31 ✓
     4. 33

102. 102. In the series 2, 5, 8, 11, ... what is the 7th term?

     1. 17
     2. 18
     3. 19
     4. 20 ✓

103. 103. In the series 5, 10, 20, 40, ... what is the 8th term?

     1. 320
     2. 480
     3. 640 ✓
     4. 1280

104. 104. In the series 1, 4, 9, 16, ... what is the 7th term?

     1. 36
     2. 42
     3. 49 ✓
     4. 56

105. 105. In the series 2, 6, 12, 20, ... what is the 8th term?

     1. 64
     2. 72 ✓
     3. 80
     4. 90

106. 106. In the series 1, 3, 6, 10, 15, ... what is the 8th term?

     1. 28
     2. 32
     3. 36 ✓
     4. 40

107. 107. In the series 2, 3, 5, 8, 12, ... what is the 7th term?

     1. 23 ✓
     2. 24
     3. 25
     4. 26

108. 108. In the series 4, 9, 16, 25, ... what is the 8th term?

     1. 49
     2. 56
     3. 64 ✓
     4. 81

109. 109. In the series 1, 2, 4, 8, 16, ... what is the 9th term?

     1. 128
     2. 256 ✓
     3. 512
     4. 1024

110. 110. In the series 7, 14, 21, 28, ... what is the 12th term?

     1. 77
     2. 84 ✓
     3. 91
     4. 98

111. 111. In the Fibonacci series 1, 1, 2, 3, 5, ... what is the 8th term?

     1. 13
     2. 18
     3. 21 ✓
     4. 34

112. 112. In the series 3, 8, 15, 24, 35, ... what is the 8th term?

     1. 56
     2. 63
     3. 64 ✓
     4. 72

113. 113. In the series 2, 5, 10, 17, 26, ... what is the 10th term?

     1. 82
     2. 91
     3. 100
     4. 101 ✓

114. 114. In the series 10, 20, 40, 80, ... what is the 7th term?

     1. 320
     2. 480
     3. 640 ✓
     4. 1280

115. 115. In the series 1, 8, 27, 64, ... what is the 8th term?

     1. 343
     2. 512 ✓
     3. 729
     4. 1000

116. 116. In the series 100, 95, 90, 85, ... what is the 15th term?

     1. 25
     2. 30 ✓
     3. 35
     4. 40

117. 117. In the series 2, 7, 14, 23, 34, ... what is the 8th term?

     1. 55
     2. 59 ✓
     3. 63
     4. 67

118. 118. In the series 1, 5, 14, 30, 55, ... what is the 7th term?

     1. 91
     2. 110
     3. 140 ✓
     4. 141

119. 119. In the series 3, 6, 12, 24, ... what is the 10th term?

     1. 768
     2. 1024
     3. 1536 ✓
     4. 3072

120. 120. In the series 11, 13, 17, 19, 23, ... what is the 7th term?

     1. 27
     2. 29
     3. 31 ✓
     4. 33