The length and breadth of the lawn are 80 m and 64 m, respectively.
The layout of the roads is shown in the figure below:
Area of the road ABCD = 80 x 5 = 400 m2
Area of the road PQRS = 64 x 5 = 320 m2
Clearly, the area EFGH is common in both the roads
Area EFGH = 5 x 5 = 25 m2
Area of the roads = 400 + 320 - 25
= 695 m2
Given: