A retailer buys a radio for Rs 225. His overhead expenses are Rs 28. He sellis the radio for Rs 300. The profit percent of the retailer is Choose one.
A) 10 %
B) 50 %
C) 25 %
D) 52 %
E) 18.5 %

Rationale: "explanation : cost price = ( 225 + 28 ) = 253 sell price = 300 gain = ( 47 / 253 ) * 100 = 18.5 % . answer : e"
Answer: E