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 2
58 = 5 + 8 = 1 + 8 + 4
50 = 5 + 0 ≠ 1 + 6 + 8
54 = 5 + 4 = 1 + 2 + 6
52 = 5 + 2 = 1 + 4 + 2
So, correct answer is option (B).