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Select the letter-cluster pair that best represents a similar relationship to the one expressed in the pairs of letter-clusters given below. NCG : SFF SQO : XTN
REV : WHW
MKY : RNX
IUD : NXA
QHX : VKV
MKY : RNX
Identify the positional shift: +5, +3, +1. Apply this pattern to the 1st letter to check options, then verify the full sequence.
Identify the positional shift: +5, +3, +1. Apply this pattern to the 1st letter to check options, then verify the full sequence.
Analyze Logic
Compare NCG to SFF: N(14)+5=19(S), C(3)+3=6(F), G(7)-1=6(F). Rule is +5, +3, -1. Check SQO: S(19)+5=24(X), Q(17)+3=20(T), O(15)-1=14(N). Logic confirmed.
Apply to MKY
M(13)+5=18(R), K(11)+3=14(N), Y(25)-1=24(X). Result is RNX.
A: REV does not follow the +5, +3, -1 shift. C: IUD (+5=N, +3=X, -1=C) results in NXC, not NXA. D: QHX (+5=V, +3=K, -1=W) results in VKW, not VKV.
B is correct because the pattern follows a shift of +5, +3, -1 across the three letters of each cluster, which perfectly matches MKY yielding RNX.
Always verify the third character transformation first, as it often differs from the first two (e.g., -1 vs +1) and serves as a quick trap-filter.