Mathematics for IGCSE & O level - Percentages (Section 2 - No. 18)
If a store offers a 40% discount on all items, and an item is originally priced at $150, what is the sale price?
$60
$90
$100
$110
คำอธิบาย
Discount is 0.40 * 150 = $60, and the sale price is $150 - $60 = $90