Mathematics for IGCSE & O level - Ratio And Proportion (Section 1 - No. 46)
A map has a scale of 1 cm to 2 km. How many kilometers do 5 cm represent?
2 km
5 km
10 km
20 km
คำอธิบาย
If 1 cm on the map represents 2 km, then 5 cm represents 5 * 2 km = 10 km.