Let C.P. of article = 100x S.P. of article if sold at 10% profit = 110x S.P. of article if it is marked up above 30% of C.P. and 10% discount is given = 100x×
130
100
×
90
100
= 117x ATQ, = 117x−110x = 56 x = 8 So, C.P. of article = 100x = 100×8 = Rs. 800