After decreasing 50% in the price of an article costs Rs.1200. Find the actual cost of an article?	Choose the correct option
A) 1200	B) 50	C) 2400	D) 100	E) 600

Rationale: "cp * ( 50 / 100 ) = 1200 cp = 24 * 100 = > cp = 2400 answer : c"
Answer: C