Question

A dealer allows a discount of 10% on the marked price of a book and still makes a profit of 10%. If the Cost price of the book is RS. 90,find(I) it's selling price (2) it's marked price

Answer 1

The cost Price is 90 and the Overall gain is 10%
So the Selling Price = 90x110/100= 99. Now the marked price has to be higher then the selling price coz the dealer offers a discount of 10%. So the Marked price= 99x100/90= 110 rs.( Remember that loss and discount percentage are always subtracted from 100).
Hope u r satisfied with the explanation