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Alphanumeric Series, Introduction and Examples (with Solutions) - 2 | Reasoning Aptitude for Competitive Examinations - Bank Exams PDF Download

Here are the alphanumeric series practice questions with their answers and explanations:
Alphanumeric Series, Introduction and Examples (with Solutions) - 2 | Reasoning Aptitude for Competitive Examinations - Bank Exams

Type 1: Completing the Series

1. Identify the missing element:

Series: A, C, E, G, __

Options: a) H b) I c) J d) K

Answer: b) I

Solution: The series is incrementing by 2 in each step (A + 2 = C, C + 2 = E, E + 2 = G, G + 2 = I).

2. Identify the missing element:

Series: 1A, 2B, 3C, 4D, __

Options: a) 5E b) 5D c) 6D d) 5F

Answer: a) 5E

Solution: The numbers are increasing by 1 and the letters are in sequential order (A, B, C, D, E).

3. Identify the missing element:

Series: Z1, Y2, X3, __

Options: a) W4 b) V4 c) W5 d) U4

Answer: a) W4

Solution: The letters are decreasing by 1 and the numbers are increasing by 1 (Z, Y, X, W and 1, 2, 3, 4).

4. Identify the missing element:

Series: M2, P4, S6, V8, __

Options: a) Y10 b) X10 c) Y12 d) Z10

Answer: a) Y10

Solution: The letters are increasing by 3 and the numbers by 2 (M + 3 = P, P + 3 = S, S + 3 = V, V + 3 = Y and 2, 4, 6, 8, 10).

5. Identify the missing element:

Series: 5X, 7V, 9T, 11R, __

Options: a) 13Q b) 13P c) 13S d) 13N

Answer: b) 13P

Solution: The numbers are increasing by 2 and the letters are decreasing by 2 (X, V, T, R, P).

6. Identify the missing element:
Series: B, E, H, K, __
Options: a) N b) M c) O d) L
Answer: a) N
Solution: The series is incrementing by 3 in each step (B + 3 = E, E + 3 = H, H + 3 = K, K + 3 = N).

7. Identify the missing element:
Series: 3F, 6I, 9L, 12O, __
Options: a) 15R b) 15Q c) 15S d) 15P
Answer: a) 15R
Solution: The numbers are increasing by 3 and the letters are increasing by 3 (F, I, L, O, R).

8. Identify the missing element:
Series: 2Z, 4X, 6V, 8T, __
Options: a) 10R b) 10S c) 10Q d) 10P
Answer: a) 10R
Solution: The numbers are increasing by 2 and the letters are decreasing by 2 (Z, X, V, T, R).

9. Identify the missing element:
Series: D4, G7, J10, M13, __
Options: a) P16 b) P17 c) O16 d) Q17
Answer: a) P16
Solution: The letters are increasing by 3 and the numbers are increasing by 3 (D + 3 = G, G + 3 = J, J + 3 = M, M + 3 = P and 4, 7, 10, 13, 16).

10. Identify the missing element:
Series: 10B, 20D, 30F, 40H, __
Options: a) 50I b) 50J c) 50K d) 50L
Answer: b) 50J
Solution: The numbers are increasing by 10 and the letters are increasing by 2 (B, D, F, H, J).

Type 2: Finding the Pattern

  1. Identify the pattern:

    • Series: 2A, 4D, 6G, 8J, __
    • Options: a) 10K b) 10L c) 10M d) 10N
    • Answer: c) 10M
    • Solution: The numbers are increasing by 2 and the letters by 3 (A + 3 = D, D + 3 = G, G + 3 = J, J + 3 = M).
  2. Identify the pattern:

    • Series: B1, D2, F3, H4, __
    • Options: a) J5 b) J6 c) I5 d) K5
    • Answer: a) J5
    • Solution: The letters are increasing by 2 and the numbers by 1 (B + 2 = D, D + 2 = F, F + 2 = H, H + 2 = J and 1, 2, 3, 4, 5).
  3. Identify the pattern:

    • Series: T20, R18, P16, N14, __
    • Options: a) L12 b) M12 c) K12 d) L10
    • Answer: a) L12
    • Solution: The letters are decreasing by 2 and the numbers by 2 (T - 2 = R, R - 2 = P, P - 2 = N, N - 2 = L and 20, 18, 16, 14, 12).
  4. Identify the pattern:

    • Series: 3C, 6F, 9I, 12L, __
    • Options: a) 15N b) 15M c) 15O d) 15P
    • Answer: c) 15O
    • Solution: The numbers are increasing by 3 and the letters by 3 (C + 3 = F, F + 3 = I, I + 3 = L, L + 3 = O).
  5. Identify the pattern:

    • Series: X5, V10, T15, R20, __
    • Options: a) P25 b) Q25 c) N25 d) O25
    • Answer: a) P25
    • Solution: The letters are decreasing by 2 and the numbers by 5 (X - 2 = V, V - 2 = T, T - 2 = R, R - 2 = P and 5, 10, 15, 20, 25).
  6. Identify the pattern:

    Series: 4A, 7D, 10G, 13J, __
    Options:
    a) 16N
    b) 16M
    c) 16O
    d) 16P

    Answer: b) 16M

    Solution: The numbers are increasing by 3 and the letters by 3 (A + 3 = D, D + 3 = G, G + 3 = J, J + 3 = M).

  7. Identify the pattern:

    Series: C1, F4, I7, L10, __
    Options:
    a) O13
    b) O12
    c) N13
    d) P10

    Answer: a) O13

    Solution: The letters are increasing by 3 and the numbers by 3 (C + 3 = F, F + 3 = I, I + 3 = L, L + 3 = O).

  8. Identify the pattern:

    Series: 25T, 23R, 21P, 19N, __
    Options:
    a) 17K
    b) 18L
    c) 17L
    d) 18K

    Answer: c) 17L

    Solution: The letters are decreasing by 2 and the numbers by 2 (T - 2 = R, R - 2 = P, P - 2 = N, N - 2 = L).

  9. Identify the pattern:
    Series: 5E, 10H, 15K, 20N, __
    Options:
    a) 25R
    b) 25P
    c) 25Q
    d) 25S
    Answer: c) 25Q
    Solution: The numbers are increasing by 5 and the letters by 3 (E + 3 = H, H + 3 = K, K + 3 = N, N + 3 = Q).

  10. Identify the pattern:
    Series: A3, C8, E13, G18, __
    Options:
    a) I23
    b) I22
    c) H23
    d) H22
    Answer: a) I23
    Solution: The letters are increasing by 2 and the numbers by 5 (A + 2 = C, C + 2 = E, E + 2 = G, G + 2 = I). (

Type 3: Finding the Incorrect Element

  1. Identify the incorrect element:

    • Series: A2, C4, E6, G8, I10, L12
    • Options: a) A2 b) C4 c) G8 d) L12
    • Answer: d) L12
    • Solution: The letters are increasing by 2 and the numbers by 2 (A + 2 = C, C + 2 = E, E + 2 = G, G + 2 = I, I + 2 = K and 2, 4, 6, 8, 10).
  2. Identify the incorrect element:

    • Series: 2B, 4D, 6E, 8H, 10K
    • Options: a) 2B b) 4D c) 6E d) 10K
    • Answer: d) 10K
    • Solution: The letters are increasing by 2 and the numbers by 2 (2, 4, 6, 8, 10 and B + 2 = D, D + 2 = F, F + 2 = H, H + 2 = J).
  3. Identify the incorrect element:

    • Series: Z1, X3, V5, P7, R9
    • Options: a) Z1 b) X3 c) P7 d) R9
    • Answer: C) P7
    • Solution: The letters are decreasing by 2 and the numbers are increasing by 2 (Z - 2 = X, X - 2 = V, V - 2 = T, T - 2 = R and 1, 3, 5, 7, 9).
  4. Identify the incorrect element:

    • Series: B3, D6, F9, H10, J15
    • Options: a) B3 b) D6 c) H10 d) J15
    • Answer: c) H10
    • Solution: The letters are increasing by 2 and the numbers by 3 (B + 2 = D, D + 2 = F, F + 2 = H, H + 2 = J and 3, 6, 9, 12, 15).
  5. Identify the incorrect element:
    Series: A3, C6, E9, G12, I18
    Options:
    a) A3
    b) C6
    c) G12
    d) I18
    Answer: d) I18
    Solution: The letters are increasing by 2 and the numbers by 3 (A + 2 = C, C + 2 = E, E + 2 = G, G + 2 = I and 3, 6, 9, 12, 15).

  6. Identify the incorrect element:
    Series: 1P, 3R, 5T, 7V, 10X
    Options:
    a) 1P
    b) 5T
    c) 7V
    d) 10X
    Answer: d) 10X
    Solution: The numbers are increasing by 2 and the letters by 2 (P + 2 = R, R + 2 = T, T + 2 = V, V + 2 = X).

  7. Identify the incorrect element:
    Series: Z2, X5, V9, T11, R14
    Options:
    a) Z2
    b) V9
    c) T11
    d) R14
    Answer: b) V9
    Solution: The letters are decreasing by 2 and the numbers are increasing by 3 (Z - 2 = X, X - 2 = V, V - 2 = T, T - 2 = R and 2, 5, 8, 11, 14)

  8. Identify the incorrect element:
    Series: 4A, 7D, 10G, 12J, 16M
    Options:
    a) 4A
    b) 7D
    c) 12J
    d) 16M
    Answer: c) 12J
    Solution: The numbers are increasing by 3 and the letters by 3 (A + 3 = D, D + 3 = G, G + 3 = J, J + 3 = M).

  9. Identify the incorrect element:
    Series: 3B, 6E, 9F, 12K, 15N
    Options:
    a) 3B
    b) 9F
    c) 12K
    d) 15N
    Answer: b) 9F
    Solution: The numbers are increasing by 3 and the letters by 3 (B + 3 = E, E + 3 = H, H + 3 = K, K + 3 = N). 

Type 4: Reverse Order Series

  1. Identify the next element:

    • Series: Z1, Y2, X3, __
    • Options: a) W4 b) W5 c) V4 d) U5
    • Answer: a) W4
    • Solution: The letters are decreasing by 1 and the numbers increasing by 1 (Z - 1 = Y, Y - 1 = X, X - 1 = W and 1, 2, 3, 4).
  2. Identify the next element:

    • Series: 5E, 4D, 3C, 2B, __
    • Options: a) 1A b) 1B c) 0A d) 1C
    • Answer: a) 1A
    • Solution: The numbers are decreasing by 1 and the letters decreasing by 1 (5, 4, 3, 2, 1 and E - 1 = D, D - 1 = C, C - 1 = B, B - 1 = A).
  3. Identify the next element:

    Series: H5, G6, F7, __
    Options:
    a) E8
    b) E7
    c) G8
    d) D8

    Answer: a) E8

    Solution: The letters are decreasing by 1 and the numbers are increasing by 1 (H - 1 = G, G - 1 = F, F - 1 = E and 5, 6, 7, 8).

  4. Identify the next element:
    Series: 10J, 9I, 8H, __
    Options:
    a) 7G
    b) 7I
    c) 7J
    d) 8G
    Answer: a) 7G
    Solution: The numbers are decreasing by 1 and the letters are decreasing by 1 (10, 9, 8 and J - 1 = I, I - 1 = H, H - 1 = G).

  5. Identify the next element:
    Series: S4, R5, Q6, __
    Options:
    a) P7
    b) P6
    c) S5
    d) R6
    Answer: a) P7
    Solution: The letters are decreasing by 1 and the numbers are increasing by 1 (S - 1 = R, R - 1 = Q, Q - 1 = P and 4, 5, 6, 7).

  6. Identify the next element:
    Series: 3C, 2B, 1A, __
    Options:
    a) 0Z
    b) 0B
    c) 1Z
    d) 2A
    Answer: a) 0Z
    Solution: The numbers are decreasing by 1 and the letters are decreasing by 1 (3, 2, 1 and C - 1 = B, B - 1 = A, A - 1 = Z).

Type 5: Mixed Series

  1. Identify the missing element:

    • Series: A1, 2B, C3, 4D, __
    • Options: a) 6E b) 7E c) 6F d) 5E
    • Answer: d) 5E
    • Solution: The pattern alternates between a number and a letter, increasing sequentially with each step (A1, 2B, C3, 4D, 5E).
  2. Identify the missing element:

    • Series: Z1, Y3, X5, W7, __
    • Options: a) C9 b) B9 c) D9 d) B8
    • Answer: b) B9
    • Solution: The pattern involves letters following a specific order (Z, Y, X, W, V) and numbers increasing by 2 (1, 3, 5, 7, 9).
  3. Identify the missing element:

    • Series: 1A, 2B, 3C, __, 5E
    • Options: a) 4D b) 5D c) 4E d) 5C
    • Answer: a) 4D
    • Solution: The series alternates between numbers and letters in sequence (1A, 2B, 3C, 4D, 5E).
  4. Identify the missing element:
    Series: 1A, 3C, 5E, 7G, __
    Options: a) 9I b) 8H c) 9H d) 8I
    Answer: a) 9I
    Solution: The pattern alternates between a number increasing by 2 and letters in alphabetical order (1A, 3C, 5E, 7G, 9I).

  5. Identify the missing element:
    Series: B1, D4, F9, H16, __
    Options: a) J25 b) I25 c) K25 d) J24
    Answer: a) J25
    Solution: The pattern involves letters increasing by 2 (B, D, F, H, J) and numbers increasing by squares (1^2 = 1, 2^2 = 4, 3^2 = 9, 4^2 = 16, 5^2 = 25).

  6. Identify the missing element:
    Series: M2, L5, K9, J14, __
    Options: a) I20 b) I18 c) H18 d) H20
    Answer: c) H18
    Solution: The pattern involves letters decreasing by 1 (M, L, K, J, I) and numbers increasing by a specific sequence (2, 5, 9, 14, 18).

  7. Identify the missing element:
    Series: 3P, 6N, 9L, 12J, __
    Options: a) 15H b) 15G c) 13H d) 13G
    Answer: a) 15H
    Solution: The pattern involves numbers increasing by 3 and letters decreasing by 2 (P, N, L, J, H).

  8. Identify the missing element:
    Series: 2Q, 5N, 8K, 11H, __
    Options: a) 13E b) 14E c) 14F d) 13F
    Answer: c) 14F
    Solution: The pattern involves numbers increasing by 3 and letters decreasing by 3 (Q, N, K, H, F).

  9. Identify the missing element:
    Series: A1, B4, C9, D16, __
    Options: a) E25 b) F25 c) E24 d) F24
    Answer: a) E25
    Solution: The pattern involves letters increasing alphabetically (A, B, C, D, E) and numbers increasing by squares (1^2 = 1, 2^2 = 4, 3^2 = 9, 4^2 = 16, 5^2 = 25).
    These examples should provide a good mix of patterns for practicing mixed-series questions with both letters and numbers.

The document Alphanumeric Series, Introduction and Examples (with Solutions) - 2 | Reasoning Aptitude for Competitive Examinations - Bank Exams is a part of the Bank Exams Course Reasoning Aptitude for Competitive Examinations.
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FAQs on Alphanumeric Series, Introduction and Examples (with Solutions) - 2 - Reasoning Aptitude for Competitive Examinations - Bank Exams

1. What are the different types of alphanumeric series questions commonly found in exams?
Ans.The different types of alphanumeric series questions commonly found in exams include Type 1: Completing the Series, Type 2: Finding the Pattern, Type 3: Finding the Incorrect Element, Type 4: Reverse Order Series, and Type 5: Mixed Series. Each type requires different analytical skills to solve.
2. How can I improve my skills in solving alphanumeric series problems?
Ans.To improve your skills in solving alphanumeric series problems, practice regularly with various types of questions. Focus on identifying patterns, sequences, and the relationships between letters and numbers. Additionally, reviewing solved examples and taking mock tests can enhance your problem-solving speed and accuracy.
3. What strategies can be used to identify patterns in alphanumeric series?
Ans.Strategies for identifying patterns in alphanumeric series include looking for common sequences in numbers and letters, checking for arithmetic or geometric progressions, and examining shifts in positions (like skipping letters or numbers). Writing down the series can also help visualize the relationships more clearly.
4. How do I tackle incorrect elements in an alphanumeric series question?
Ans.To tackle incorrect elements in an alphanumeric series question, first analyze the entire series to determine the established pattern. Once the pattern is identified, compare each element against it. The element that does not conform to the identified pattern is likely the incorrect one.
5. Are there specific resources or practice materials for alphanumeric series preparation?
Ans.Yes, there are many resources and practice materials available for alphanumeric series preparation. You can find books specifically focused on reasoning and analytical skills, online quizzes, and educational websites that offer mock tests. Additionally, video tutorials can provide explanations and strategies to tackle these types of questions effectively.
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