Mathematics for IGCSE & O level - Ratio And Proportion (Section 3 - No. 27)
If a map's scale is 1:20000 and a distance is represented by 2.5 cm, what is the actual distance in meters?
50 m
500 m
5000 m
50000 m
คำอธิบาย
1 cm = 20000cm. 2.5cm = 50000cm, or 500m