Mathematics for IGCSE & O level - Percentages (Section 5 - No. 13)
In a special promotion, a health club offers a 20% discount for membership. Membership usually costs $35. How much does it cost with the discount?
$28
$25
$21
$30
คำอธิบาย
20% of $35 = $7. Discounted price = $35 - $7 = $28.