Reasoning Tricks Based on Letter Series SSC CGL ,BANK PO, IBPS ,Railway PO , UPSC

Reasoning Tricks Based on Letter Series SSC CGL ,BANK PO, IBPS ,Railway PO , UPSC

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Letter series reasoning is an important topic in competitive exams like SSC CGL, Bank PO, IBPS, Railway PO, UPSC, etc. Here are some tricks and strategies to solve letter series questions efficiently:

Types of Letter Series & Tricks to Solve Them

1. Alphabetical Order Series

Example: B, D, F, H, ?
Trick: Identify the pattern in letter positions.

• B (2), D (4), F (6), H (8), …
• Pattern: +2
• Next letter: J (10)
  Answer: J

2. Reverse Alphabet Series

Example: Z, X, V, T, ?
Trick: Look for decreasing letter positions.

• Z (26), X (24), V (22), T (20), …
• Pattern: -2
• Next letter: R (18)
  Answer: R

3. Alternating Letter Series

Example: A, C, F, J, O, ?
Trick: Check the difference between consecutive letters.

• A → C (+2), C → F (+3), F → J (+4), J → O (+5)
• Pattern: +2, +3, +4, +5
• Next: O → U (+6)
  Answer: U

4. Vowel & Consonant Based Series

Example: A, E, I, O, ?
Trick: Observe vowel patterns.

• The given letters are vowels in order: A, E, I, O, U
  Answer: U

5. Skip Letter Series

Example: A, D, H, M, ?
Trick: Check the letter gaps.

• A → D (+3), D → H (+4), H → M (+5)
• Pattern: +3, +4, +5
• Next: M → S (+6)
  Answer: S

6. Mixed Logic Series

Example: B, Y, D, W, G, T, ?
Trick: Look for forward and backward movements.

• B(+2) → D, D(+3) → G, G(+4) → K
• Y(-2) → W, W(-3) → T, T(-4) → P
  Answer: K, P

Quick Tips to Crack Letter Series Questions

Write down letter positions (A=1, B=2, …, Z=26)
Identify the gap or sequence (+/- pattern, alternate logic)
Check for vowel-consonant patterns
Try forward and reverse sequences
Use elimination in MCQs for faster solving

Want more practice questions or explanations? Let me know!