1. 2, 4, 6, 8, 10, ?
A) 11
B) 12
C) 13
D) 14
Answer: B) 12 (Adding 2 each time)
2. 5, 10, 15, 20, 25, ?
A) 28
B) 30
C) 32
D) 35
Answer: B) 30 (Adding 5 each time)
3. 1, 4, 9, 16, 25, ?
A) 30
B) 36
C) 40
D) 45
Answer: B) 36 (Squares of natural numbers: 1², 2², 3²…)
4. 2, 3, 5, 7, 11, ?
A) 12
B) 13
C) 14
D) 15
Answer: B) 13 (Sequence of prime numbers)
5. 1, 3, 6, 10, 15, ?
A) 19
B) 20
C) 21
D) 22
Answer: C) 21 (Triangular numbers: adding 2, then 3, then 4…)
6. 1, 1, 2, 3, 5, 8, ?
A) 10
B) 11
C) 12
D) 13
Answer: D) 13 (Fibonacci sequence: each number is sum of two preceding ones)
7. 3, 6, 12, 24, 48, ?
A) 72
B) 84
C) 96
D) 108
Answer: C) 96 (Multiplying by 2 each time)
8. 1, 8, 27, 64, 125, ?
A) 144
B) 196
C) 216
D) 256
Answer: C) 216 (Cubes of natural numbers: 1³, 2³, 3³…)
9. 0, 1, 1, 2, 3, 5, 8, 13, ?
A) 18
B) 19
C) 20
D) 21
Answer: D) 21 (Extended Fibonacci sequence)
10. 2, 5, 10, 17, 26, ?
A) 34
B) 35
C) 36
D) 37
Answer: D) 37 (Adding consecutive odd numbers: +3, +5, +7…)
11. 1, 2, 4, 8, 16, ?
A) 24
B) 28
C) 32
D) 36
Answer: C) 32 (Multiplying by 2 each time: powers of 2)
12. 1, 4, 7, 10, 13, ?
A) 15
B) 16
C) 17
D) 18
Answer: B) 16 (Adding 3 each time)
13. 2, 6, 12, 20, 30, ?
A) 40
B) 42
C) 44
D) 46
Answer: B) 42 (Adding consecutive even numbers: +4, +6, +8…)
14. 1, 3, 7, 15, 31, ?
A) 47
B) 53
C) 63
D) 65
Answer: C) 63 (Multiplying by 2 and adding 1: 1×2+1=3, 3×2+1=7…)
15. 1, 2, 6, 24, 120, ?
A) 240
B) 480
C) 600
D) 720
Answer: D) 720 (Factorial sequence: 1!, 2!, 3!…)
16. 1, 4, 9, 16, 25, 36, ?
A) 42
B) 47
C) 49
D) 52
Answer: C) 49 (Squares of natural numbers: 7²)
17. 3, 9, 27, 81, 243, ?
A) 486
B) 729
C) 972
D) 1089
Answer: B) 729 (Multiplying by 3 each time: powers of 3)
18. 1, 8, 16, 24, 32, 40, ?
A) 44
B) 46
C) 48
D) 50
Answer: C) 48 (Starting with 1, then adding 7, then adding 8 each time)
19. 5, 11, 17, 23, 29, ?
A) 33
B) 35
C) 37
D) 39
Answer: B) 35 (Adding 6 each time)
20. 2, 4, 8, 14, 22, 32, ?
A) 42
B) 44
C) 46
D) 48
Answer: B) 44 (Adding consecutive even numbers: +2, +4, +6…)
21. 1, 5, 13, 25, 41, ?
A) 51
B) 55
C) 61
D) 65
Answer: C) 61 (Adding multiples of 4: +4, +8, +12…)
22. 1, 2, 4, 7, 11, 16, ?
A) 20
B) 22
C) 24
D) 26
Answer: B) 22 (Adding 1, then 2, then 3…)
23. 1, 3, 9, 27, 81, ?
A) 162
B) 243
C) 324
D) 405
Answer: B) 243 (Multiplying by 3 each time)
24. 1, 4, 10, 22, 46, ?
A) 64
B) 82
C) 94
D) 108
Answer: C) 94 (Multiplying by 2 and adding 2: 1×2+2=4, 4×2+2=10…)
25. 2, 5, 11, 23, 47, ?
A) 83
B) 89
C) 95
D) 101
Answer: C) 95 (Multiplying by 2 and adding 1: 2×2+1=5, 5×2+1=11…)
26. 1, 6, 15, 28, 45, ?
A) 55
B) 60
C) 66
D) 72
Answer: C) 66 (Adding consecutive odd numbers starting from 5: +5, +9, +13…)
27. 0, 6, 24, 60, 120, ?
A) 180
B) 210
C) 240
D) 270
Answer: B) 210 (n³ – n: 1³-1=0, 2³-2=6, 3³-3=24…)
28. 1, 2, 6, 15, 31, ?
A) 46
B) 52
C) 56
D) 62
Answer: C) 56 (Adding squares of natural numbers: +1², +2², +3²…)
29. 1, 3, 6, 10, 15, 21, ?
A) 25
B) 27
C) 28
D) 30
Answer: C) 28 (Triangular numbers: adding 2, then 3, then 4…)
30. 2, 6, 18, 54, 162, ?
A) 324
B) 432
C) 486
D) 576
Answer: C) 486 (Multiplying by 3 each time)
31. 1, 2, 3, 5, 8, 13, 21, ?
A) 29
B) 31
C) 34
D) 37
Answer: C) 34 (Fibonacci sequence)
32. 1, 4, 9, 16, 25, 36, 49, ?
A) 56
B) 64
C) 72
D) 81
Answer: B) 64 (Squares of natural numbers: 8²)
33. 1, 2, 4, 7, 11, 16, 22, ?
A) 27
B) 28
C) 29
D) 30
Answer: C) 29 (Adding 1, then 2, then 3…)
34. 1, 3, 7, 13, 21, 31, ?
A) 37
B) 41
C) 43
D) 45
Answer: C) 43 (Adding consecutive even numbers: +2, +4, +6…)
35. 2, 6, 12, 20, 30, 42, ?
A) 50
B) 54
C) 56
D) 60
Answer: C) 56 (Adding consecutive even numbers: +4, +6, +8…)
36. 1, 5, 14, 30, 55, 91, ?
A) 120
B) 130
C) 140
D) 150
Answer: C) 140 (Sum of squares: 1, 1+4, 1+4+9…)
37. 1, 9, 25, 49, 81, ?
A) 100
B) 110
C) 121
D) 144
Answer: C) 121 (Squares of odd numbers: 1², 3², 5²…)
38. 3, 7, 15, 31, 63, ?
A) 95
B) 111
C) 127
D) 143
Answer: C) 127 (Multiplying by 2 and adding 1: 3×2+1=7, 7×2+1=15…)
39. 1, 2, 5, 10, 17, 26, ?
A) 35
B) 36
C) 37
D) 38
Answer: C) 37 (Adding consecutive odd numbers: +1, +3, +5…)
40. 1, 1, 2, 6, 24, 120, ?
A) 240
B) 480
C) 600
D) 720
Answer: D) 720 (Factorial sequence: 1!, 2!, 3!…)
41. 1, 4, 27, 256, 3125, ?
A) 46656
B) 50000
C) 55555
D) 60000
Answer: A) 46656 (nⁿ: 1¹, 2², 3³…)
42. 1, 2, 6, 24, 120, 720, ?
A) 1440
B) 2880
C) 5040
D) 10080
Answer: C) 5040 (Factorial sequence: 7! = 5040)
43. 2, 3, 10, 15, 26, 35, ?
A) 45
B) 50
C) 55
D) 60
Answer: B) 50 (Alternating pattern: 1²+1=2, 2²-1=3, 3²+1=10…)
44. 1, 11, 21, 1211, 111221, ?
A) 112112
B) 121122
C) 211212
D) 312211
Answer: D) 312211 (Look-and-say sequence: describe previous term)
45. 1, 3, 6, 10, 15, 21, 28, ?
A) 34
B) 35
C) 36
D) 38
Answer: C) 36 (Triangular numbers: adding 2, then 3, then 4…)
46. 1, 2, 4, 8, 16, 32, 64, ?
A) 96
B) 112
C) 128
D) 144
Answer: C) 128 (Powers of 2: 2⁷=128)
47. 1, 4, 9, 16, 25, 36, 49, 64, ?
A) 81
B) 90
C) 100
D) 121
Answer: A) 81 (Squares of natural numbers: 9²)
48. 1, 3, 4, 7, 11, 18, 29, ?
A) 40
B) 45
C) 47
D) 50
Answer: C) 47 (Lucas sequence: each term is sum of two preceding terms)
49. 2, 3, 5, 9, 17, 33, ?
A) 55
B) 60
C) 65
D) 70
Answer: C) 65 (Multiplying by 2 and subtracting 1: 2×2-1=3, 3×2-1=5…)
50. 1, 2, 5, 12, 27, 58, ?
A) 112
B) 121
C) 125
D) 130
Answer: B) 121 (Multiplying by 2 and adding consecutive integers: 1×2+0=2, 2×2+1=5, 5×2+2=12…)
