Question

. The ratio of length and width of a park is 3:1 is. The perimeter of the park is 320 meters. A path 2 meters wide has been built towards the inner wall of the park. What will be the total cost of road construction at the cost of Rs. 1.50 per square meter?​

Answer 1

Answer:

Step-by-step explanation:

Let the length be : 3x

And, width: x

Perimeter = 320

2(l+w) =320

2(3x + x) =320

2(4x) = 320

4x = 320÷2

4x = 160

x = 160÷4

x = 40

Therefore, length = 3x

= 3×40

= 120m

width = x

= 40

Area of the path = 2 × 120

= 240m sq.

Now , cost of road construction

= 240 ×1.50

= Rs. 360 (ans.)