Question

The cost of fencing a square garden I ₹400 at the rate of ₹ 1 per metre.Find the area of the garden in square metres

Answer 1

Solution :-

Rs. 1 is for fencing = 1 sq. m

Rs. 400 is for fencing = 1 × 400 sq. m

= 400 sq. m

Ans:- Hence the area of the garden is

400 sq. m.

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Answer 2

Cost of Fencing a garden = Rs 400

Cost of fencing garden per meter = Rs 1

$perimeter = \frac{total \: cost \: }{per \: meter \: cost} \\ = \frac{400}{1} \\ = 400m$

Perimeter of Square = 400m

4 × side = 400

$side = \frac{400}{4} \\ = 100m$

Area of Square = Side × Side

= 100 × 100

= 10,000 sq. m