A fair price shopkeeper takes 10% profit on his goods. He lost 30% goods during theft. His loss percent is: Select:
A) 23 %  B) 42 %  C) 32 %  D) 12 %  E) 22 %

Rationale: "explanation : suppose he has 100 items . let c . p . of each item be re . 1 . total cost = rs . 100 . number of items left after theft = 70 . s . p . of each item = rs . 1.10 total sale = 1.10 * 70 = rs . 77 hence , loss % = 23 / 100 * 100 = 23 % answer : a"
Answer: A