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Difficulty: MediumNumber and Alphabet Series
Which term logically completes the following alphanumeric series?
B26,G20,L15,Q11,?,A6B26, G20, L15, Q11, ?, A6
  1. V8Answer
  2. B
    U8
  3. C
    V7
  4. D
    W8

Answer

V8
The correct term is V8 because the letter sequence follows a +5 positional shift rule (B→G→L→Q→V→AB \to G \to L \to Q \to V \to A) and the numerical sequence follows a decreasing step pattern subtractive rule (−6,−5,−4,−3,−2-6, -5, -4, -3, -2).

Step-by-Step Solution

1
Analyze the pattern for the letter positions.
The alphabetical positions advance by +5 at each step: B (2) -> G (7) -> L (12) -> Q (17). Adding 5 to Q (17) gives 22, which corresponds to the letter V. Verifying the next term: V (22) + 5 = 27, which wraps around to A (1).
Establishing the consistent forward positional shift of the alphabetical components.
2
Analyze the pattern for the numerical components.
The numbers decrease by successive decrements: 26 - 6 = 20, 20 - 5 = 15, 15 - 4 = 11. The next subtraction must be -3, giving 11 - 3 = 8. Verifying the subsequent step: 8 - 2 = 6, which matches the final term.
Determining the decreasing difference sequence for the numerical values.
3
Combine the letter and numerical results.
Combining the 5th letter V with the number 8 yields V8.
Forming the complete term for the missing position.

Key Concept

Dual-pattern alphanumeric series featuring constant letter positional increment and consecutive integer decrement
Estimated Time:1m 0s
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Topics

Number and Alphabet Series

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