Question

Tom wants to cover his 13m by 12m backyard with lawn. Seed for the lawn cost rp.7.50 per square metre. Find the total cost of the seed for the lawn​

Answer 1

Answer:

Side of square = 250 m

Perimeter of square = 4 x side

= 4 x 250 = 1000 m

Since, cost of fencing of per meter = Rs. 20

Therefore, cost of fencing of 1000 meters = 20 x 1000 = Rs. 20,000

Answer 2

Answer:

₹ 1170

Step-by-step explanation:

As per the provided information in the given question, we have:

• Sides of backyard with lawn = 13m and 12 m
• The cost of seed is rupees 7.50 per square metre.

We've been asked to calculate the total cost of the seed for the lawn.

Let us firstly calculate the area of lawn. As the lawn is rectangular in shape, we have to use "Area of rectangle" formula to calculate the area of lawn.

$\odot$ Area of rectangle is the product of it's length and breadth.

$\twoheadrightarrow\quad\sf{{Area}_{(Rectangle)}=length\times breadth}$

Here, length and breadth of the lawn is 13 and 12, so we can equate it in the formula.

$\twoheadrightarrow\quad\sf{{Area}_{(Lawn)}=13\times 12}$

Performing multiplication to calculate the area of lawn.

$\twoheadrightarrow\quad\bold{{Area}_{(Lawn)}=156\: cm}$

We have to calculate the total cost of the seed for the lawn.

– Now, according to the question, the rate of seed for the lawn costs rupees 7.50 per metre square. So, $\\\twoheadrightarrow\quad\sf{{Total\: cost}_{(Seed)}={Area}_{(Lawn)}\times Cost\: of\: seed\: per\: metre}$

Substitute area of lawn and total cost of seed per metre in order to perform multiplication.

$\twoheadrightarrow\quad\sf{{Total\: cost}_{(Seed)}=156\times 7.50}$

Performing multiplication to calculate the total cost of seed.

$\twoheadrightarrow\quad\underline{\boxed{\pmb{\bold{{Total\: cost}_{(Seed)}}=\frak{₹\: 1170}}}}$

❝ Therefore, the total cost of the seed for the lawn is ₹ 1170. ❞