Discount 1 = 20%
Discount 2 = 30%
Effective discount = -20% - 30% +
%⇒ 44%Now he is also giving 2 products for every 8 products
⇒ He is giving 10 products in the marked of price of 8 products
⇒ Discount he is providing, discount
3→×100⇒20%Overall effective discount =
−44%−20%+⇒
−64%+=%⇒ if marked price = 500x
Selling price = (500 - 276) x = 224x ...(i)
Profit in overall transaction = 12%
⇒ If CP = 100x
SP = 112x
But SP from Equation (i) = 224x
⇒ CP will be 200x
Markup%
=×100%=150%