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Reasoning practice

Alphanumeric Series Questions with Answers

Mixed strings of letters, digits and symbols, counted and scanned against a condition. This page pools every alphanumeric series question on the site (187 of them, from 26 exams, weighted towards Banking, Railways, SSC) so you can drill the topic on its own instead of meeting four of them inside a full paper.

12% of the pool is graded hard on this site’s own scale and 14% easy, which is about average for this section.

Questions
187
Practice set
25 in 25 min
Difficulty
27/138/22
Negative marking
None
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Alphanumeric Series questions with solutions

6 from the 187-question pool, worked in full.

  1. 1. In the sequence M@3N#6O9$P, how many letters are immediately followed by a symbol?

    • A. 1
    • B. 3
    • C. 4
    • D. 2 ✓

    Solution. The sequence is M,@,3,N,#,6,O,9,$,P. Letters immediately followed by a symbol: M followed by @, and N followed by #. O is followed by 9 (a number), and P is last with nothing after it. Total: 2.

  2. 2. Complete the series: B2, D8, F18, H32, ?

    • A. J48
    • B. K50
    • C. J52
    • D. J50 ✓

    Solution. The letters skip one each time (B, D, F, H, J). The numbers follow 2n² for n=1,2,3,4,5: 2, 8, 18, 32, 50. Next term: J50.

  3. 3. In the word "MARKET", if the letters are arranged in reverse alphabetical order, how many letters lie between the first and the last letter of the new arrangement?

    • A. 2
    • B. 3
    • C. 5
    • D. 4 ✓

    Solution. Reverse alphabetical order of M, A, R, K, E, T is T, R, M, K, E, A. Between the first letter (T) and the last letter (A) lie R, M, K, and E — 4 letters.

  4. 4. Find the missing letter: Z, X, U, Q, ?

    • A. K
    • B. M
    • C. N
    • D. L ✓

    Solution. The gaps decrease going backward by increasing amounts (-2, -3, -4, -5): Z(26), X(24), U(21), Q(17), and the next letter is at position 17-5=12, which is L.

  5. 5. In the word "MARBLE", if all the letters are arranged in alphabetical order, which letter occupies the 3rd position?

    • A. B
    • B. L
    • C. M
    • D. E ✓

    Solution. Alphabetical order of M, A, R, B, L, E is A, B, E, L, M, R — the 3rd letter is E.

  6. 6. Find the next term: 2, 3, 7, 22, 89, ?

    • A. 356
    • B. 445
    • C. 446 ✓
    • D. 448

    Solution. Each term follows the rule: next = previous × (its position in the series, starting from 1) + 1. So 2×1+1=3, 3×2+1=7, 7×3+1=22, 22×4+1=89, 89×5+1=446.

Exams that set Alphanumeric Series

6 categories, led by Banking, Railways, SSC.

Also set by RBI Grade B, RPF Constable, RPF Sub-Inspector, RRB Group D, RRB Junior Engineer, SBI Clerk, SBI PO, SEBI Grade A, SIDBI Grade A & B, SNAP, SSC CHSL, SSC CPO, SSC GD Constable, SSC MTS. Browse all exams.

Alphanumeric Series: frequently asked questions

How many alphanumeric series questions are there?

187, from the 26 exams here whose syllabus sets the topic. 14% are graded easy and 12% hard, which makes alphanumeric series about average for this section, where the mean is 17%.

Which exams ask alphanumeric series questions?

26 of the exams on this site, weighted towards Banking (14), Railways (4), SSC (4). Every question in this pool comes from one of their own mock tests, so the list below is the honest answer to whether the topic is worth your time.

Is alphanumeric series hard?

12% of these 187 questions are graded hard and 14% easy, making it about average for this section, where the mean is 17%.

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