Q.8 Find the missing sequence in the letter series.
B, FH, LNP, _ _ _ _.
(A) SUWY (B) TUVW (C) TVXZ (D) TWXZ
The letter series B, FH, LNP follows a clear pattern based on increasing letter counts and alphabetical positions, with the next term requiring four letters starting from T and skipping every other letter (gap of 2 positions). The correct answer is (C) TVXZ.
Pattern Breakdown
Assign positions: A=1, B=2, …, Z=26.
-
B: position 2 (1 letter).
-
FH: F=6 (+4 from 2), H=8 (6+2) (2 letters).
-
LNP: L=12 (+6 from 6), N=14 (12+2), P=16 (14+2) (3 letters).
The starting positions (2, 6, 12) increase by +4, then +6; next is +8 to 20 (T). Within terms, consistent +2 gaps yield T=20, V=22, X=24, Z=26.
Option Analysis
| Option | Letters (Positions) | Fits Pattern? | Reason |
|---|---|---|---|
| (A) SUWY | S=19, U=21, W=23, Y=25 | No | Starts at 19 (wrong start), skips to Y=25 inconsistently. |
| (B) TUVW | T=20, U=21, V=22, W=23 | No | Correct start but consecutive letters (+1 gaps), not +2. |
| (C) TVXZ | T=20, V=22, X=24, Z=26 | Yes | Perfect: starts at 20, +2 gaps throughout. |
| (D) TWXZ | T=20, W=23, X=24, Z=26 | No | Gaps irregular (3,1,2), breaks +2 rule. |
Introduction to Letter Series Puzzles
Letter series questions like B, FH, LNP missing sequence test pattern recognition in competitive exams such as GATE and aptitude tests. These involve alphabet positions and gaps, building logical reasoning skills for students and professionals.
Step-by-Step Solution Guide
-
Count letters: 1, 2, 3 → next is 4.
-
Track starts: 2→6 (+4), 6→12 (+6) →12+8=20 (T).
-
Internal gaps: All +2 positions.
-
Result: TVXZ confirms the letter series B FH LNP missing sequence.
Why Practice These Patterns?
Mastering letter series B FH LNP missing sequence boosts speed in exams. Common pitfalls include ignoring position jumps or gaps—always verify all options systematically.
