Question

an article marked at rupees 800 is sold at a discount of 10% find the of cost price of dealer makes a profit of 20%​

Answer 1

Discount of 10% on marked

price=800*10%

=80

Selling price=800-80

=720

The dealer makes a profit of 20% means is selling the article at 120%.

120%=720

1%=6

Hence, 100%=600

Thus, the cost price of article= 600

If no discount allowed,

Selling price will become 800

Profit= SP-CP

= 800-600

=200

Profit percent=(200/600)*100

=33.33%

Answer 2

marked price =mp

selling price =sp

cost price =cp

mp : sp =100:90

800:sp =100:90

sp=800×90/100=720

cp:sp =100:120

cp : 720 :100 :120

cp =100×720/120

=600