A rectangular field has length is 45m and breath is 35m.there is a road 5m outer side of the rectangle. How much it cost to plant trees in the road. If the cost per metre is RS 15

Answer 1

The length of the road is the perimeter of the field. So the cost to plant it is perimeter*cost/meter:

2(45+35)*15

Of course, that is the length of the inside of the road. If the trees are planed more toward the outside, then the length will be greater...