Question

Q5. The cost of levelling a square lawn at
Rs. 2.5 per ma is Rs. 13322.5. Find the
cost of fencing it at Rs. 5 per metre. plese tell me ​

Answer 1

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The cost of fencing is Rs.1460.

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Given :

The cost of leveling a square lawn at Rs . 2.50 per square meter is Rs. 13322.50.

To find :

The cost of fencing it at the rate of Rs .5 per meter?

Solution :

The cost of leveling a square lawn is Rs.13322.50

cost = area * rate

13322.50 = area * 2.50

13322.50/2.50 = area

area = 5329 m²

Area of the square lawn,

area = side²

side = √ area

side =√5329

side = 73 m

Perimeter of the square lawn,

P = 4 * side

P =4 * 73

 = 292 m

The cost of fencing it at the rate of Rs .5 per meter

The cost of fencing is

c = 292 * 5 = ₹ 1460

Therefore, The cost of fencing is Rs.1460.

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