Question

Each said of a square land of our village is 300 meter we shall fence that square land by 3dcm wide wall with same hight around its four side let us see that how much will it cost for the wall at the rate of Rs 5000 per 100 sq meter

Answer 1

Answer:

Area of wall = Area of outer square – Area of inner square

Length of outer square = 300 + 0.3m (3dcm = 0.3m)

= 300.3m

We know, area of square = (side)2

Area of outer square = 300.32 = 90180.09m2

Area of inner square = 3002 = 90000m2

Area of wall = 90180.09 – 90000 = 180.09m2

Rate per square metre of wall = = Rs. 50/sq m

So for 1 m2 - - - - Rs. 50

180.09m2 - - - Rs. 50 × 180.09 = Rs. 9004.5