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

3740 , 4635 , 5869 , 7946 , 2378

A. 3740
B. 4635
C. 5869
D. 7946
E. 2378
Answer: A . 3740

Justification: In all other numbers, the sum of the first and the last digits is equal to the product of other two digits.