Alpha–numeric series completion: determine the next term after ZA5, Y4B, XC6, W3D by decoding the simultaneous letter shifts (first letter −1, last letter +1) and an alternating numeric pattern.

Question

Solve this multiple-choice question and choose the correct option.

Curioustab · Accepted Answer

There are three independent streams: first letter descends, number alternates −1/+2/−3/+4, last letter ascends. First letters: Z → Y → X → W → V (−1 each step). Numbers: 5 → 4 (−1), 4 → 6 (+2), 6 → 3 (−3), 3 → 7 (+4) — continuing the alternating magnitude pattern. Last letters: A → B → C → D → E (+1 each step). Concept/ApproachDecompose the string into (Letter1, Number, Letter2) and analyze each as its own progression.Step-by-Step calculation1) Letter1: Z(26)−1 → Y(25)−1 → X(24)−1 → W(23)−1 → V(22).2) Number: 5 −1 = 4; 4 +2 = 6; 6 −3 = 3; 3 +4 = 7.3) Letter2: A(1)+1 → B(2)+1 → C(3)+1 → D(4)+1 → E(5).Verification/AlternativeCombine results: V + 7 + E = V7E.Common pitfallsMissing the alternating sign and increasing magnitude in the number sequence; assuming a constant numeric step.Final AnswerV7E

Alpha–numeric series completion: determine the next term after ZA5, Y4B, XC6, W3D by decoding the simultaneous letter shifts (first letter −1, last letter +1) and an alternating numeric pattern.

Answer

Explanation