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Set (7, 27, 55) — which set follows the same relationship?
A(21, 35, 52)
B(18, 42, 65)
C(16, 40, 72)
D(13, 30, 58)
Answer & Solution
Correct answer: C. (16, 40, 72)
1. Relationship in (7,27,55): 27 − 7 = 20; 55 − 27 = 28. Differences 20 and 28 (increment +8).
2. Check (16,40,72): 40 − 16 = 24; 72 − 40 = 32. Increment +8 between consecutive differences.
3. Therefore option C matches.
_Source: KMAT Karnataka 2023 PYQ Q.29_