Mathematics for IGCSE & O level - Percentages (Section 1 - No. 41)
If a shopkeeper buys 100 cups for $1.20 each and sells 80 with a 15% profit and the remaining 20 at 95c each, what is the profit on each of the 80 cups?
$0.10
$0.15
$0.18
$0.20
คำอธิบาย
Profit on 1 cup = 15% of $1.20