Question

The length of a river in a map is 54cm. if lcm on the map represents 12500m on land, find the length of the river. 

Answer 1

1 cm on map represents 12500 m on land 

1 cm represents 12.5km on land 

Length of river on map = 54 cm 

Actual length of the river = 54 x 12.5 = 675.000 km = 675 km