Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number-pair that is different.
Answer & explanation
Correct answer: option 2
The logic followed here is
10 → (10 + 1) → 112 = 121 + 2 = 123
17 → (17 + 1) → 182 = 324 + 2 = 236 ≠ 290 (odd)
14 → (14 + 1) → 152 = 225 + 2 = 227
11 → (11 + 1) → 122 = 144 + 2 = 146