The cost price of an article is 64% of the marked price. Calculate the gain percent after allowing a discount of 25%?	Choose the correct choice from the following choices:  A) 37.5%  B) 37.6%  C) 38.5%  D) 17.1%  E) 37.2%
Let marked price = Rs. 100.   Then, C.P. = RS. 64, S.P. = Rs. 75   Gain % = 11/64 * 100 = 17.1%.   Answer: 17.1%
<result>D</result>
The cost price of an article is 64% of the marked price. Calculate the gain percent after allowing a discount of 25%?