The original price is $60
Explanation:
Given:
Selling price, SP = $45
Discount rate = 25%
Original price,y = ?
We know:
Discount = Marked price - selling price
Discount = y - 45
Discount % = [tex]\frac{discount}{marked price} X 100\\[/tex]
[tex]\frac{25}{100} = \frac{y -45}{y} \\\\y = 4(y - 45)\\\\y = 4y - 180\\\\180 = 3y\\\\y = 60[/tex]
Therefore, the original price is $60