By selling an article at (25)th of the marked price, there is a loss of 25%. The ratio of the marked price and the cost price of the article is
Let M.P. = Rs. 100
Then S.P. =25 of M.P. =25×100= Rs. 40
Loss =25%
Then, C.P. =100100−loss%× S.P.
⇒100100−25×40
⇒10075×40= Rs. 1603
M.P. : C.P. =100:1603=300:160
=15:8