Question

The scale of a map is 1 : 200000. A plot of land of area 20km² is to be represented on the map. Find: 

The number of kilometres on the ground represented by lcm or the map 

Answer 1

Scale:-1: 200000 

∴  1 cm represents 200000 cm =`200000/(1000 xx 100)` = 2 km

1 cm represents 2 km.