In Choose odd Number questions, certain numbers are given, out of which all except one are alike in some manner while one is different and this number is to be chosen as the answer.

Choose or find odd number

751, 734, 981, 853, 532

A. 751
B. 734
C. 981
D. 853
E. 532
Answer: A . 751


In each number except 751, the difference of the third and the first digit is the middle one.
Hence, the answer is (a).