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Which of the following options should come in place of the question mark (?) in the given series based on the English alphabetical order? GJE, ILG, KNI, MPK,?
RMO
ORM
ROM
OMR
ORM
Look at each position (1st, 2nd, 3rd) separately. Each letter advances by +2 in the alphabet (G+2=I, I+2=K, K+2=M, M+2=O; J+2=L, L+2=N, N+2=P, P+2=R; E+2=G, G+2=I, I+2=K, K+2=M).
Look at each position (1st, 2nd, 3rd) separately. Each letter advances by +2 in the alphabet (G+2=I, I+2=K, K+2=M, M+2=O; J+2=L, L+2=N, N+2=P, P+2=R; E+2=G, G+2=I, I+2=K, K+2=M).
Analyze 1st letter of each triplet
G(7), I(9), K(11), M(13). The pattern is +2. Next is 13+2 = 15, which is O.
Analyze 2nd letter of each triplet
J(10), L(12), N(14), P(16). The pattern is +2. Next is 16+2 = 18, which is R.
Analyze 3rd letter of each triplet
E(5), G(7), I(9), K(11). The pattern is +2. Next is 11+2 = 13, which is M.
A: RMO has letters in incorrect order based on the +2 progression. C: ROM is a permutation of the correct letters but follows the wrong sequence order. D: OMR has the last two letters swapped.
B is correct because each character in the triplet GJE, ILG, KNI, MPK follows a consistent +2 progression, resulting in ORM.
For complex letter series, always write the positional numbers (A=1, B=2...) to quickly identify hidden arithmetic gaps.