Four pairs of numbers have been given, out of which three are alike in some manner, while one is different. Choose out the odd one.
Answer & explanation
Correct answer: option 4
7 : 91 (7 × 13 = 91 )
8 : 104 (8 × 13 = 104 )
5 : 65 (5 × 13 = 65 )
6 : 84 (6 × 14 = 84 )