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What should come in place of the question mark (?) in the series: BDF, HJL, NPR, ?
TVX
TUX
TWZ
TVZ
TVX
Observe the first letters of each triplet; they follow a pattern of +6 (B+6=H, H+6=N, N+6=T). Since each triplet advances alphabetically by 2 (e.g., B+2=D, D+2=F), T+2=V and V+2=X.
Observe the first letters of each triplet; they follow a pattern of +6 (B+6=H, H+6=N, N+6=T). Since each triplet advances alphabetically by 2 (e.g., B+2=D, D+2=F), T+2=V and V+2=X.
Analyze the starting letters of each triplet
Identify the first letter of each group: B (2), H (8), N (14). The pattern is +6: 2+6=8 (H), 8+6=14 (N), 14+6=20 (T).
Analyze the progression within the triplet
Each triplet consists of consecutive even-positioned letters: B(2), D(4), F(6). Similarly, H(8), J(10), L(12) and N(14), P(16), R(18). Following this, the next set starts at T(20), so the next letters are V(22) and X(24).
B is incorrect because it includes the letter U (21), breaking the +2 sequence; C is incorrect because the difference between T and W is +3; D is incorrect because the difference between V and Z is +4.
A is correct because the series follows a consistent pattern of increasing the start letter by 6, and each letter within the triplet increases by 2, leading to TVX.
For alphabet series questions, always convert letters to their numerical positions (A=1, B=2, ..., Z=26) immediately to simplify complex-looking patterns into simple arithmetic sequences.
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