Question

The area of a rectangular garden of length 40 m, is 1000 sqm. Find the breadth of the garden and its perimeter The garden is to be enclosed by 3 rounds of fencing, leaving an entrance of 4m. Find the cost of fencing the garden at a rate of 250 rupees per metre​

Answer 1

Step-by-step explanation:

Area - 1000 sqm.

Length - 40m.

Breadth is equal to Area/length

1000/40 - 25m.

Now, perimeter is - 2( l+b)

2(40+25)

2(65)

130 is perimeter..

Now,

Cost of fencing..

130 x 3

= 260 - 4x3

=260-12

=248 m... This much is to be fenced..

Now cost is,

248 x 250

=62,000

DONE..

THANKS-

Answer 2

Answer:

Given :

Area of rectangular field = 1000 sqm.

Length of rectangular field = 40 m

To Find :

• breadth

• Its perimeter

• Cost of fencing

Solution :

$length \times breadth = area \\ \implies \: breadth = \frac{area}{length}$

$\implies \: breadth \: = \frac{1000}{40} = 25m$

So the breadth is 25 m

Perimeter of rectangular garden = 2 ( l + b )

= 2 ( 40 + 25) = 130 m

Length required for one round of fence = 130 - 4 = 126 m

For three round of fence = 3 × 126 = 378 m

Cost of fencing = 378 × 250 =Rs 94500

$\bf \pink{breadth = 25m}$

$\bf \red{perimeter = 130m}$

$\bf \green{cost \: of \: fencing \: = rs \: 945 00}$