Question

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

Answer 1

let the Marked price be X

after allowing a discount of 10 percentage,the discount is discount percentage of the marked price=10% of x

=10/100 × x

=x/10

discount =x/10

SP = MP - discount

=x - x/10

=9x/10

CP=SP×100/(100 + g%)

CP= (9x/10 ×100)/(100 + 17)

=(9x/10 ×100) /(117)

=90x/117

percentage the marked price above the cost price = (difference / cost price ) ×100%

=( x - 90x/117) /(90x/117)×100%

=(27x/117) /(90x/117) ×100%

=(27x ×117/117×90x)×100%

=30%