Choose the number which is different from others in the groups?

751, 734, 981, 853, 532

751

The correct answer is Option (2) → 751

751, 734, 981, 853, 532

THE LOGIC FOLLOWED HERE IS :

Third and the first digit is the middle one.

The correct option is  A 751

751 = 7 - 1 = 6 ≠ 5 (ODD)

734 = 7 - 4 = 3

981 = 9 - 1 = 8

853 = 8 - 3 = 5

532 = 5 - 2 = 3

In each number except 751, the difference of the third and the first digit is the middle one.