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
16 : 64 : 12
42 : 82 : (4+8 = 12)
64 : 100 : 18
82 : 102 : (8+10= 18)
25 : 16 : 9
52 : 42 : (5+4 = 9)
81 : 9 : 19
92 : 32 : (9+3 = 12 ≠ 19)