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What should come in place of ? in the given series based on the English alphabetical order? GXK OFS WNA EVI ?
MRF
MDO
MDQ
MDR
MDQ
Look at the pattern for each column individually: Column 1 follows a -8 shift, Column 2 follows a -5 shift, and Column 3 follows a -12 shift (cycling through A-Z).
Look at the pattern for each column individually: Column 1 follows a -8 shift, Column 2 follows a -5 shift, and Column 3 follows a -12 shift (cycling through A-Z).
Analyze the first letter
G(7) → O(15) → W(23) → E(5) →?. The pattern is +8. (7+8=15, 15+8=23, 23+8=31; 31-26=5(E), 5+8=13(M)). The first letter is M.
Analyze the second letter
X(24) → F(6) → N(14) → V(22) →?. The pattern is +8. (24+8=32; 32-26=6(F), 6+8=14(N), 14+8=22(V), 22+8=30; 30-26=4(D)). The second letter is D.
Analyze the third letter
K(11) → S(19) → A(1) → I(9) →?. The pattern is +8. (11+8=19, 19+8=27; 27-26=1(A), 1+8=9(I), 9+8=17(Q)). The third letter is Q.
A: MRF is wrong as the third letter must be Q; B: MDO is wrong as the third letter must be Q; D: MDR is wrong as the third letter must be Q.
C is correct because the pattern for each column is a consistent increment of +8 in alphabetical position, leading to MDQ.
When solving alphabetical series, always convert letters to their numerical positions (A=1, Z=26) immediately to simplify addition and subtraction patterns.