Question

The area of a rectangular plot is 330 and its breadth i as 15 m findthe length of the plot and the cost of fencing it at the rate of 8.50 per meter

Answer 1

$Hey\:!!..$

The answer goes here....

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》To find :

Length and cost of fencing

》Given :

Area of plot = 330 ${m}^{2}$

Breadth = 15 m

Cost of fencing = 8.50 per meter

》Solution :

Let the length of the plot be $x$ .

Now, we know that

area of rectangle = $l\times b$

330 ${m}^{2}$ = $x\times 15$

$x$ = $\frac{330}{15}$

$x$ = 22 m

So, the length of the rectangle is 22 m.

Now, we need to find cost of fencing.

So, perimeter = total circumference for fencing

Perimeter = $2(l+b)$

Perimeter = $2(22+15)$

Perimeter = 74 m

So, the total cost for fencing :

Cost = Perimeter × Rate

Cost = $74\times 8.50$

Cost = Rupees 629

So, the cost of fencing will be 629 Rupees.

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Thanks !!..

Answer 2

Answer : $\bold{Rs \: 629}$


Explanation -

Given :

Area = 330 m^2

Breadth = 15 m



Finding the Length -

Area = Length x Breadth

330 = Length x 15

Length = 330/15

Length = 22 m


Finding the Perimeter -

Perimeter = 2(Length + Breadth)

Perimeter = 2(22 + 15)

Perimeter = 2(37)

Perimeter = 74 m


Finding the cost -

Given : Per metre = 8.50

So, 74 m = 74 x 8.50 = 629.


Hence :

Answer = Rs 629