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.

13 : 90

THE LOGIC;

( (1st number x4) - 8 = 2nd number )

1) 19 : 68,

(19 x4) -8 = 68

2) 23 : 84,

(23 x4) -8 = 84

3) 13 : 90,

(13 x4) -8 = 44

4) 17 : 60,

(17 x4) -8 = 60

Thus, 13 : 90 is correct option.