Log ind
Mathematics for IGCSE & O level - Ratio And Proportion (Section 3 - No. 6)
If 4 pens cost $3.20, how much would 7 pens cost?
$5.60
$6.40
$7.20
$8.00
Forklaring
$3.20/4 = $0.80 per pen. $0.80 * 7= $5.60
Kommentarer (0)
Log ind for at kommentere
Reklame
Tillad, at javascript indlæser denne side korrekt
