Question

A computer company gives a discount of 10 % on a new piece of software. If it makes a profit of 7%, what percent does the marked price exceed the cost price?

Answer 1

let the cost price be x and marked y.
y*90/100 =x*107/100
y/x=107/90
(y-x) 170
-----*100% = ----- = 18.89%
x 9