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
The logic followed here is :
Ist number × 2 + 1 = second number
37, 75 ⇒ 37 × 2 + 1 = 75
68, 137 ⇒ 68 × 2 + 1 = 137
19, 39 ⇒ 19 × 2 + 1 = 39
25, 53 ⇒ 25 × 2 + 1 = 51 ≠ 53