Question

a boundry wall is constructed around a building.the length of the wall is 20m and breadth is 25 m .3 m space left on one side for a gate .find the total length of the wall​

Answer 1

Answer:

Step-by-step explanation:

It is given that:

Length of wall = 100 m

Width of wall = 40.75 m

Cost per meter = 23 Rs

2.5 meters are left for entrance

The perimeter of the rectangle = 2(Length + Width)

= 2(100+40.75) = 281.5 meters

Therefore, the cost = 23*281.5 = 6474.5 Rs

However, 2.5 meters are left for entrance. Therefore, the cost of the 2.5 meters = 23*2.5 = 57.5 Rs