Mathematics for IGCSE & O level - Ratio And Proportion (Section 6 - No. 7)
In a map with scale 1 cm: 5 km, a certain distance is represented by a line that's 8 cm long. Which statement(s) is/are true?
The real distance is 40 km.
The real distance is 400 km.
A 20 km real distance on map is 4 cm.
A 5 km real distance on map is 1 cm.
설명
Real distance is 5*8=40 km. 20 km = 4 cm on map and 5 km = 1 cm on map.