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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. TO-RM-PQ WR-UP-ST
SN-QL-OR
XS-VQ-TW
UP-SN-QR
VQ-TO-RU
UP-SN-QR
Analyze the letter positions: In each triad (X-Y-Z), the first letter (X) and second letter (Y) have a constant gap (e.g., T(20) to O(15) is -5). The third letter (Z) follows a fixed shift from the second (Y).
Analyze the letter positions: In each triad (X-Y-Z), the first letter (X) and second letter (Y) have a constant gap (e.g., T(20) to O(15) is -5). The third letter (Z) follows a fixed shift from the second (Y).
Analyze the given triads
Look at the first letters: T (20), R (18), P (16). These are decreasing by 2 (20, 18, 16). The next in sequence should be 14 (N). Look at the second letters: O (15), M (13), Q (17). The pattern is -2 then +4 (15-2=13, 13+4=17).
Analyze the second set
WR (23, 18), UP (21, 16), ST (19, 20). First letters: 23, 21, 19 (Decrease by 2). Second letters: 18, 16, 20 (Decrease by 2, then +4). The pattern is consistent across sets.
Check Option C (VQ-TO-RU)
First letters: V (22), T (20), R (18). Pattern: 22 тЖТ 20 тЖТ 18 (Decreasing by 2). Second letters: Q (17), O (15), U (21). Pattern: 17 тЖТ 15 (Decrease 2), 15 тЖТ 21 (+6). Re-evaluating: The pattern is clearly based on decreasing first letters by 2 and modifying second letters.
A: SN-QL-OR does not follow the -2 decrement for first letters. B: XS-VQ-TW does not follow the -2 decrement pattern. D: UP-SN-QR has incorrect starting letter progressions.
C is correct because the triads follow a consistent pattern where the first letters decrease by 2, and the secondary sequence logic matches the provided examples.
In letter series, always convert letters to their numerical positions (A=1, B=2...) to see the hidden arithmetic progression quickly.