1∶x= 1∶4000000
x=4000000
Let the distance on the map be y cm.
y∶4000000= 1∶6000000
y=4000000/6000000
y=2/3
A: It should be 2/3 cm.
600 m =60000 cm
Scale: 2∶60000= 1∶30000
Assume that the actual distance is x cm.
4∶x= 1∶30000
x= 120000
120000m =1200m
The actual distance from Wang Qiang's home to the post office is1200m.