Question

A dress on sale in a shop is marked at $D. During the discount sale its price is reduced by 15%. Staff are allowed a further 10% reduction on the discounted price. If a staff member buys the dress what will she have to pay in terms of D ?

Answer 1

`Calculating\ first\ 15\%\ sale:\\\\ 15\%*D=0,15*D=0,15D\\New\ price:\ \ \D-0,15D=0,75D \\\\Sale\ for\ staff:\\\\ 10\%(0,75D)=0,1*0,75D=0,075D\\\\New\ price:\ \ \ 0,75D-0,075D=0,675D\\\\Staff\ will\ pay\ 0,675D\ for\ this\ dress.`