A fair price shopkeeper takes 10% profit on his goods. He lost 20% goods during theft. His loss percent is:
Choose the correct choice from the following answers:  A) 10  B) 13  C) 12  D) 18  E) 19

Rationale: "c 12 % suppose he has 100 items . let c . p . of each item be $ 1 . total cost = $ 100 . number of items left after theft = 80 . s . p . of each item = $ 1.10 total sale = 1.10 * 80 = $ 88 hence , loss % = 12 / 100 * 100 = 12 %"
Answer: C