A store discounted an item by 20%, then offered an additional 10% discount on the new price. What was the total percentage discount from the original price?

✓ Correct Answer: Option A

Let the original price be P. After a 20% discount, the price is P * (1 - 0.20) = 0.80P. An additional 10% discount on the new price makes it 0.80P * (1 - 0.10) = 0.80P * 0.90 = 0.72P. The final price is 72% of the original, so the total discount is 100% - 72% = 28%.