A. 5km
C. 2.5km
C. 10km
D. 20km
Correct Answer:
Option C = 10km
Explanation
map distance = 20cm, ground distance = Y
map scale = 2cm to 1km
since 2cm ≡ 1km
20cm ≡ Y
2Y = 20km
Y = 20km/2=10km
The ground distance between the two towns is 10km