A man invests in a 16% stock at 128. The interest obtained by him is Pick.
A) 22.5 % B) 42.5 % C) 12.5 % D) 62.5 % E) 82.5 %

Rationale: by investing rs 128 , income derived = rs . 16 by investing rs . 100 , income derived = = rs . 12.5 interest obtained = 12.5 % answer : c
Answer: C