You can put this solution on YOUR website! Alright. Let's begin with the price that we don't know. Let's call it P.
The problem says that they discounted 20%, right? You might now ask 20% of what? 20% of the original price. That translates to 0.20*P, the discount amount.
Original price MINUS discount amount equals the discounted price.
AKA, P - 0.20P = $48.00
0.80P = $48.00
P = $60.00
You're exactly right.