Math, asked by harshubhat1315, 1 year ago

Two pathways parallel to the length and breadth have been constructed in the Centre of a rectangular park. Whose length is 125 m. and breadth is 95 m. If width of each parthway is 10 metre. Find out:
(i) expenditure on putting soil on the pathway at the rate of ? 80 per square meter.
(ii) area of putting grass excluding the paths.

Answers

Answered by bhagyashreechowdhury
4

(i) Expenditure on putting soil on the pathway at the rate of 80 per square meter is Rs. 80,000.

(ii) Area of putting grass excluding the paths  is 10875 m²

Step-by-step explanation:

Step 1:

The dimension of the rectangular park:  

Length, l = 125 m  

Breadth, b = 95 m  

Area of the rectangular park = l * b = 125 * 95 = 11875 m²

Step 2:

Two pathways of width 10 m run at the centre of the park and are parallel to the sides of the rectangular park.  

Now,  

Area of the path running parallel to the length of the park = l * w = 125 * 5 = 625 m²

Area of the path running parallel to the breadth of the park = b * w = 95 * 5 = 475 m²  

Area of the common portion between the two cross road tracks = 10 * 10 = 100 m²  

Therefore,  

The area of the pathway is given by,  

= [Area of the path running parallel to the length] + [Area of the path running parallel to the breadth] – [Area of the common portion]  

= 625 + 475 – 100

= 1000 m²  

Step 3:

The expenditure on putting soil on the pathway is given as Rs. 80 per square meter

Therefore,  

The expenditure on putting soil on the pathway of 1000 m² ,

= 1000 m² * Rs. 80

= Rs. 80,000

∴ The area of putting grass excluding the paths is given by,

= [Area of the rectangular park] – [Area of the pathway]

= 11875 m² - 1000 m²  

= 10875 m²

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