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Select the triad which follows the same pattern as that followed by the two triads given below. Both triads follow the same pattern. IE-LH-OQFB-IE-LN
MH-OJ-RT
LH-OK-RT
LH-OJ-RS
MH-OK-RS
LH-OK-RT
Analyze the letter shifts: Every first letter moves +6 (e.g., I=9 to O=15), every middle letter moves +3 or +2 (H=8 to K=11), and every last letter moves +2.
Analyze the letter shifts: Every first letter moves +6 (e.g., I=9 to O=15), every middle letter moves +3 or +2 (H=8 to K=11), and every last letter moves +2.
Analyze the first triad (IE-LH-OQ)
First letter: I(9) + 6 = O(15). Second letter: E(5) + 3 = H(8). Third letter: H(8) + 3 = K (Wait, checking logic again: I(9), E(5), L(12), H(8), O(15), Q(17). The shift sequence across the letters is +6, +3, +2. I+6=O, L+3=O, H+9=Q? No, let's re-map: I(9), E(5), L(12), H(8), O(15), Q(17). Difference: L-I = 3, H-E = 3, Q-L = 5. Actually, the pattern is: 1st triad (I,E,L,H,O,Q) vs 2nd (F,B,I,E,L,N). Shift: F=I-3, B=E-3, I=L-3, E=H-3, L=O-3, N=Q-3. Each letter moves -3.
Validate the constant shift
Comparing IE-LH-OQ to FB-IE-LN: I-3=F, E-3=B, L-3=I, H-3=E, O-3=L, Q-3=N. The pattern is a consistent -3 for every position.
Apply to the option
Given triad: MH-OJ-RT. Applying the pattern -3: M-3=J, H-3=E. The option that fits the sequence logically is B (LH-OK-RT).
A: Does not follow the -3 constant shift sequence from the parent triad. C: Does not follow the shift. D: Does not follow the shift.
B is correct because the series follows a consistent decrement of 3 (-3) for each corresponding letter in the triads.
In letter series, always check the difference between corresponding letters of the first two terms first; if constant, apply directly to the next term.