Mathematics for IGCSE & O level - Percentages (Section 3 - No. 23)
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 revenue from the remaining 20 cups?
$18.00
$19.00
$20.00
$19.50
Giải thích
Revenue from the remaining cups = 20 * $0.95