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.

28 : 163 16 : 91 27 : 82 22 : 127

27 : 82

The logic followed here is: Ist number × 6 - 5 = second number 28 : 163 → 28 × 6 - 5 = 163 16 : 91 → 16 × 6 - 5 = 91 27 : 82 → 27 × 6 - 5 = 157 ≠ 82 22 : 127 → 22 × 6 - 5 = 127