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CE 13 is related to GI 19 in a certain way. In the same way, KM 19 is related to OQ 25. To which of the following is SU 17 related, following the same logic?
LI 23
WY 23
YZ 23
MP 21
WY 23
Find the constant jump for letters (+2 for both positions) and check the constant difference between the number and the starting letter's position.
Find the constant jump for letters (+2 for both positions) and check the constant difference between the number and the starting letter's position.
Analyze Letter Transformation
Comparing CE to GI: C(3) to G(7) is +4, and E(5) to I(9) is +4. Comparing KM to OQ: K(11) to O(15) is +4, and M(13) to Q(17) is +4. Following this, SU(19, 21) requires +4 to both letters: S+4=W(23) and U+4=Y(25).
Analyze Number Pattern
In CE 13: 13 = (3+5)+5. In GI 19: 19 = (7+9)+3 (not constant). Let us check the number logic again: CE(3, 5) → 3+5=8, 8+5=13. GI(7, 9) → 7+9=16, 16+3=19. KM(11, 13) → 11+13=24, 24-5=19. OQ(15, 17) → 15+17=32, 32-7=25. The pattern for the number is the sum of the positions of the two letters minus a decreasing odd-numbered offset (starting from a base logic). However, looking at the consistent letter shift of +4, SU becomes WY. The number 17 + (sum of W and Y: 23+25=48) shows the gap shifts by 6 units. 17+6=23.
A: LI 23 starts with L, not W; C: YZ 23 does not follow the +4 letter shift; D: MP 21 does not follow the +4 letter shift.
B is correct because the letters shift forward by 4 places (S+4=W, U+4=Y) and the number logic leads to 23.
In alphanumeric analogies, prioritize the letter shift logic first as it usually eliminates most distractors, then verify the numerical calculation.