A person buys an article at Rs.500. At what price should he sell the article so as to make a profit of 10%?  Options:
A) 550  B) 882  C) 772  D) 652  E) 271

Rationale: "cost price = rs . 500 profit = 10 % of 500 = rs . 50 selling price = cost price + profit = 500 + 50 = 550 answer : a"
Answer: A