Verified answer

Answer:

₹2.5

Step-by-step explanation:

Perimeter of rectangular garden = 2(l+b)

56 = 2l × 2b

= 36 × 2b

2b = 56/36

= 14/9

Breadth = 14/9 ÷ 2

= 14/9 × 1/2

= 7/9 m

Area of rectangular garden = l × b

= 18 × 7/9

= 2 × 7

= 14 m²

Cost of manuring the garden = 14 ÷ 5.75

= ₹2.5 (Approx)

Step-by-step explanation:

Solution

Given

• Length of the rectangle = 12 m
• Perimeter of the rectangle = 55 m

Perimeter of rectangular garden = 2(l + b)

55 = 2× (12+breadth)

55= 24 + 2 Breadth

2b = 55-24

b= 31m

substituting the values

A= 12×31

A = 372

Now

Cost of manufacturing 1m square = 5.75

Cost of manuring the garden = 5.75×372= 2139