Question

10. After allowing a discount of 10% on the marked price, a trader still makes a profit of 17%. Bu what per cent is the marked price above cost price? ​

Answer 1

let me be 100

sp=90

cp=90×100/(100+17)

cp=9000/117

mp-cp =100-9000/117=,2700

%of mp-cp=2700/117/9000/117×100=3%