Question 917056
Let the original price of the blouse be X

Therefore 30% less of original price means 30% of X i.e. 30/100*X = 3/10*X

now original price was $15 more than the sales price, which means the discount which is given is equal to $15

so 3/10*X = 15

   X = 15*10/3
   X = 50

that's your answer. Good luck.