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 from the rest.

8 - 138

THE LOGIC;

1) 6 - 174,

174 \(\div \) 6 = 29

2) 8 - 138,

138 \(\div \) 8 = 17.25

3) 5 - 155,

155 \(\div \) 5 = 31

4) 11 - 143,

143 \(\div \) 11 = 13

Thus, 8 - 138 is different from others.