The cost price of an article is 36% of the marked price. Calculate the gain percent after allowing a discount of 20%. Choices.
A) 22.2 %
B) 36 %
C) 80 %
D) 122.2 %
E) none

Rationale: "sol . let marked price = rs . 100 . then , c . p . = rs . 36 . s . p = rs . 80 . â ˆ ´ gain % = [ 44 / 36 * 100 ] % = 122.2 % . answer d"
Answer: D