A dealer allows a discount of 10% on the market price .How much above the cost price must he mark his goods to make a profit of 8%?

1 answer

we need

(1+x)(0.9) = 1.08
x = 0.20 = 20%

check: on $1.00 cost,
mark up to $1.20
discount = $0.12, so the final price is $1.08, or 8% profit