Question

A garden 200 m long ,150m wide has a road 4 m wide all around it on the inside. Find the cost of cementing it Rs 9.50per square metre

Answer 1

this is answer for ur question

Answer 2

Answer:

Rs 27208

Step-by-step explanation:

Hi,

Let the outer rectangle be ABCD and the inner rectangle be abcd. 

Length of the inner rectangle = 200 m 

and the breadth of the inner rectangle = 150 m

Since the road which is of  uniform width of the outside path is 4 meter,

So, the length of the outer rectangle = 200 + 2*4 = 208 m 

and the breadth of the inner rectangle = 150 + 2*4 = 158 m

The area of the inner rectangle = 200*150 = 30000 m²

The area of the outer rectangle = 208*158 = 32864 m²

So, Area of the road = Area of Outer rectangle - Area of inner rectangle

= 32864 - 30000

2864 m²

Cost of cementing the road = Rs 9.50 per m²

The total cost of cementing the road = 9.5 × 2864

= Rs 27208

Hope, it helps !