Question

A farmer has a rectangular field of length
and breadth 360 m and 120 m
respectively. He wants to fence it with 4
rounds of rope. Find the cost of fencing
at the rate of Rupees 15 per metre.
​

Answer 1

Step-by-step explanation:

Length = 360m

breadth = 120m

perimeter = 2 (l+b)

= 2(360+120)

= 2(480)

= 960m

4 rounds of fence = 960 × 4

= 3840m

1m = rs 15

3840m = X

= 3840 × 15

= RS 59600

hope it helpful

Answer 2

Answer :

›»› The cost of fencing the rate of Rs.15 per m² is Rs.57600.

Provided :

• A farmer has a rectangular field of length and breadth 360 m and 120 m respectively.
• He wants to fence it with 4 rounds of rope.

To Find :

• The cost of fencing the rate of Rs.15 per m².

Solution :

Since the rectangular field is in the shape of rectangle, and the length and breadth of a rectangle are 360 m and 120 m respectively.

⠀⋆ Length = 360 m.

⠀⋆ Breadth = 120 m.

So, Perimeter of rectangular field = Perimeter of rectangle.

As we know that

→ Perimeter of rectangle = 2(length + breadth)

→ Perimeter of rectangle = 2(360 + 120)

→ Perimeter of rectangle = {(2 * 360) + (2 * 120)}

→ Perimeter of rectangle = {720 + (2 * 120)}

→ Perimeter of rectangle = 720 + 240

→ Perimeter of rectangle = 960

The perimeter of a rectangular field is 960 m.

4 rounds of rope = 4 * perimeter of rectangular field

→ 4 rounds of fence = 4 * 960

→ 4 rounds of fence = 3840

4 rounds of fence is 3840 m.

Now, the cost of fencing the rate of Rs.15 per m² = Rs.15 * 4 rounds of fence.

→ Cost = 15 * 3840

→ Cost = 57600

Hence, the cost of fencing the rate of Rs.15 per m² is Rs.57600.