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Logical Reasoning Test Practice Course: Number and letter series

Questionário temático sem limite de tempo: 18 perguntas sobre Number and letter series, com uma explicação depois de cada resposta. As perguntas e respostas são baralhadas de cada vez.

  • Curso
  • Canadá
  • 99 perguntas
  • Verificado em 13 de outubro de 2026
  • Verificado em 13 de outubro de 2026
Comece pelas liçõesLogical Reasoning Course: Lessons: cerca de 180 minutos de leitura. Todas as perguntas do teste são abordadas nas lições.

Questionário temático 2: Number and letter series

  1. Pergunta 1 de 18

    What number comes next in the series 4, 9, 14, 19, ?
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    Resposta: D. 24

    Each number is 5 more than the one before: 19 + 5 = 24.

  2. Pergunta 2 de 18

    What number comes next in the series 3, 6, 12, 24, ?
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    Resposta: A. 48

    Each number is double the one before: 24 × 2 = 48.

  3. Pergunta 3 de 18

    What number comes next in the series 81, 72, 63, 54, ?
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    Resposta: D. 45

    Each number is 9 less than the one before: 54 − 9 = 45.

  4. Pergunta 4 de 18

    What letter comes next in the series A, C, E, G, ?
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    Resposta: D. I

    The letters skip one each time: A(1), C(3), E(5), G(7), so next is position 9, which is I.

  5. Pergunta 5 de 18

    What number comes next in the series 1, 4, 9, 16, 25, ?
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    Resposta: D. 36

    These are square numbers: 1×1, 2×2, 3×3, 4×4, 5×5. Next is 6 × 6 = 36.

  6. Pergunta 6 de 18

    What letter comes next in the series Z, W, T, Q, ?
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    Resposta: A. N

    The letters go back 3 each time: Z(26), W(23), T(20), Q(17), so next is 14, which is N.

  7. Pergunta 7 de 18

    What number comes next in the series 5, 7, 11, 17, 25, ?
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    Resposta: D. 35

    The differences are 2, 4, 6, 8, so the next difference is 10: 25 + 10 = 35.

  8. Pergunta 8 de 18

    What comes next in the series A1, C3, E5, G7, ?
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    Resposta: A. I9

    Each letter skips one, and the number is the letter's position in the alphabet: I is the 9th letter, so I9.

  9. Pergunta 9 de 18

    What number comes next in the series 2, 5, 11, 23, ?
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    Resposta: A. 47

    Each number is doubled and then 1 is added: 23 × 2 + 1 = 47.

  10. Pergunta 10 de 18

    What number comes next in the series 2, 3, 5, 8, 13, ?
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    Resposta: D. 21

    Each number is the sum of the two before it: 5 + 8 = 13, so 8 + 13 = 21.

  11. Pergunta 11 de 18

    What comes next in the series AZ, BY, CX, DW, ?
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    Resposta: A. EV

    The first letter moves forward one place (A, B, C, D, E) and the second moves back one place (Z, Y, X, W, V).

  12. Pergunta 12 de 18

    What number comes next in the series 10, 3, 12, 6, 14, 9, ?
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    Resposta: C. 16

    Two series alternate: 10, 12, 14 (add 2) and 3, 6, 9 (add 3). The next number belongs to the first series: 14 + 2 = 16.

  13. Pergunta 13 de 18

    What letter comes next in the series B, D, G, K, ?
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    Resposta: A. P

    The gaps grow: +2, +3, +4, so the next gap is +5. K is 11, and 11 + 5 = 16, which is P.

  14. Pergunta 14 de 18

    What number comes next in the series 100, 50, 52, 26, 28, ?
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    Resposta: D. 14

    The steps alternate: divide by 2, then add 2. After 28 comes 28 ÷ 2 = 14.

  15. Pergunta 15 de 18

    What number comes next in the series 1, 2, 6, 24, 120, ?
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    Resposta: D. 720

    Multiply by 2, then 3, then 4, then 5. The next step is × 6: 120 × 6 = 720.

  16. Pergunta 16 de 18

    One number in this series is wrong: 2, 6, 18, 52, 162. Which one?
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    Resposta: A. 52

    Each number should be 3 times the one before: 2, 6, 18, 54, 162. So 52 should be 54.

  17. Pergunta 17 de 18

    What letter comes next in the series D, F, I, M, R, ?
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    Resposta: A. X

    The gaps are +2, +3, +4, +5, so the next gap is +6. R is 18, and 18 + 6 = 24, which is X.

  18. Pergunta 18 de 18

    What number comes next in the series 3, 4, 8, 17, 33, ?
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    Resposta: C. 58

    The differences are 1, 4, 9, 16 (square numbers). The next difference is 25: 33 + 25 = 58.

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