Fill the missing group: A, CD, GHI, ( ? ), UVWXY. Group lengths grow 1, 2, 3, 4, 5; starting letters advance by +2, +4, +6, +8: A → C → G → M → U.

Question

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

Accepted Answer

Introduction / Context:The pattern involves two controls: the number of letters per group and the starting letter progression. Given Data / Assumptions: Groups: 1, 2, 3, 4, 5 letters respectively. Starting letters: A, C, G, M, U with jumps +2, +4, +6, +8. Concept / Approach:Determine the correct starting letter for the 4-letter group and then list 4 consecutive letters. Step-by-Step Solution: A(1) → C(3) +2; C(3) → G(7) +4; G(7) → M(13) +6; M(13) → U(21) +8.Hence the 4-letter group must start at M: M N O P. Verification / Alternative check:Counting letters per group (1→2→3→4→5) matches A / CD / GHI / MNOP / UVWXY. Why Other Options Are Wrong:LMNO starts at L, not M; MNO has only 3 letters; NOPQ starts at N, not M. Common Pitfalls:Focusing only on group length and missing the non-linear jumps in starting letters. Final Answer:MNOP.

Fill the missing group: A, CD, GHI, ( ? ), UVWXY. Group lengths grow 1, 2, 3, 4, 5; starting letters advance by +2, +4, +6, +8: A → C → G → M → U.

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