Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the odd one.
Answer & explanation
Correct answer: option 4
4 : 17 → 42 + 1 = 17
11 : 122 → 112 + 1 = 122
5 : 26 → 52 + 1 = 26
13 : 175 → 132 + 1 = 170 ≠ 175 (odd)