Question

The area of a rectangular garden is 80sq.m.Its length is 10m .Find its breadth. If it costs Rs 90 permetre to fence the garden, find the total cost of one round of fencing?​

Answer 1

Correct Question :

The area of a rectangular garden is 80 sq.m. Its length is 10 m. Find its breadth. If it costs Rs 90 per metre to fence the garden, find the total cost of one round of fencing?

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Before, finding the answer. Lets find out on how we can find the answer.

• First, to find the breadth we must use the formula of

$\boxed{ \sf Breadth = \dfrac{area}{lenght} }$

• Next, we must find the perimeter of Rectangular Garden by using the formula of

$\boxed{ \sf Perimeter \: of \: Rectangle = (2 × l) + (2 × b) }$

• At last, we must multiply the cost and perimeter of Rectangular Garden.

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Given :

• Area of Garden : 80 sq.m
• Length of Garden = 10 m

To find :

• Breadth and Total Cost

Solution :

${ \sf Breadth = \dfrac{area}{lenght} }$

$\sf Breadth = \dfrac{80}{10}$

$\sf Breadth = 8 m$

Hence, the Breadth of the Rectangular Garden us 8 m.

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Fencing of Rectanglular Garden = (2 × l) + (2 × b)

= (2 × 10) + (2 × 8)

= 20 + 16 m

= 36 m

Hence, the Perimeter of Garden is 36 m.

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Cost of Fencing = perimeter × rate

= 36 × 90

= Rs. 3240

Hence, the Cost of Fencing is Rs. 3240.