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Number Sequence Test – Hard

Next follows a number sequences aptitude test with 21 of the hardest number sequences on the web! Can you solve them all? What are the missing numbers in the number sequences shown below? Good luck!

Practice the numerical reasoning tests used by employers at JobTestPrep.

1.
15 29 56 108 208 ...

 386
 400
 416
 438
2.
13 -21 34 -55 89 ...

 -96
 104
 -123
 -144
3.
52 56 48 64 32 ...

 84
 112
 96
 94
4.
1 3 7 11 13 ...

 17
 15
 19
 21
5.
230 460 46 92 9.2 ...

 18.4
 18
 18.2
 20.4
6.
3 12 24 33 66 ...

 75
 74
 86
 82
7.
3 5 7 11 13 ...

 13
 14
 16
 17
8.
8 16 24 36 48 ...

 58
 76
 64
 72
9.
68 36 20 12 8 ...

 4
 5
 3
 6
10.
18 6 24 8 32 ...

 9
 10.7
 10
 8
11.
99 18 36 9 18 ...

 36
 27
 9
 3
12.
3 8 23 68 203 ...

 271
 248
 608
 606
13.
144 73 14 8 236 ...

 118
 119
 120
 96
14.
10 45 15 38 20 ...

 25
 30
 31
 33
15.
1 10 37 82 145 ...

 207
 226
 232
 255
16.
-2 1 6 13 22 ...

 29
 33
 36
 42
17.
34 -21 13 -8 5 ...

 1
 0
 -3
 -4
18.
1 0 1 -1 2 ...

 -2
 -3
 0
 1
19.
108 56 29 15 8 ...

 3
 4
 5
 6
20.
1 8 27 64 125 ...

 189
 196
 216
 225
21.
-3 3 27 69 129 ...

 178
 207
 268
 312

Number Sequences Numerical Reasoning


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