Practice test

Number series - Test Set 1

Review 20 exam-focused questions with detailed explanations, then start the interactive test when you are ready.

20 questions

Questions and explanations

  1. Question 1

    1, 2, 6, 24, ? ,720
    1. 3
    2. 5
    3. 8
    4. 120
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  2. Question 2

    0, 7, 26, 63, ?
    1. 125
    2. 124
    3. 126
    4. 217
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  3. Question 3

    4 7 12 19 28 A 52

    A2 – 4 = ?
    1. 1365
    2. 1517
    3. 1435
    4. 1505
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  4. Question 4

    36 216 64.8 388.8 A 699.84 209.952

    A ÷ 36 = ?
    1. 3.24
    2. 61.39
    3. 32.4
    4. 6.139
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  5. Question 5

    42 62 92 132 A 242 312

    A + 14 = ? × 14
    1. 1167
    2. 14
    3. 12
    4. 18
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  6. Question 6

    –1, 0, ?, 8, 15, 24
    1. 1
    2. 2
    3. 3
    4. 4
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  7. Question 7

    251, (12), 107, 381, (?) , 125
    1. 11
    2. 14
    3. 16
    4. 24
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  8. Question 8

    3120, ?, 122, 23, 4
    1. 488
    2. 610
    3. 621
    4. 732
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  9. Question 9

    20, 24, 33, 49, 74, 110 ?
    1. 159
    2. 133
    3. 171
    4. 147
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  10. Question 10

    1, 1, 2, 6, 24, ?, 720
    1. 120
    2. 108
    3. 104
    4. 100
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  11. Question 11

    6, 13, 28, 59, ?
    1. 113
    2. 122
    3. 114
    4. 111
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  12. Question 12

    3, 15, ?, 63, 99, 143
    1. 27
    2. 56
    3. 35
    4. 45
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  13. Question 13

    5760, 960, ?, 48, 16, 8
    1. 240
    2. 160
    3. 120
    4. 192
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  14. Question 14

    12, 15, 19, 24, ?
    1. 30
    2. 34
    3. 28
    4. 27
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  15. Question 15

    72, 63, 54, 45, ?
    1. 36
    2. 27
    3. 18
    4. 20
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  16. Question 16

    8, 64, 216, 516, 512, 1000, 1728, ?
    1. 2744
    2. 2197
    3. 4096
    4. 4913
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  17. Question 17

    81, 512, 2401, 7776, 15625, 16384, ?
    1. 1968
    2. 6561
    3. 2187
    4. 7298
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  18. Question 18

    6, 26, 134, 666, 3334, 16666, ?
    1. 83334
    2. 84344
    3. 83443
    4. 83344
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  19. Question 19

    16, 24, 48, 120, 360, 1260, ?
    1. 4725
    2. 4410
    3. 5040
    4. 5355
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  20. Question 20

    529, 841, 961, 1369, 1681, 1849, ?
    1. 2209
    2. 2601
    3. 2809
    4. 3481
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