Question

the cost of grassing a square lawn at ₹ 1.35 per meter square is ₹ 72037. 35 find the cost of fencing it with wire two times at ₹2.85 per meter

Answer 1

Area=total cost/cost per square metre
=72037.35/1.35=53361
Area=s^2 =53361
s=231
Cost of fencing 2 times
=8*cost of fencing 1 side
=8*231*cost of fencing 1 m
=5266.8 rupees
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Answer 2

Given :   cost of grassing a square lawn at ₹ 1.35 per meter square is ₹ 72037. 35

To Find: cost of fencing it with wire two times at ₹2.85 per meter

Solution:

Let say Area of Square lawn  = A  m²

cost of grassing a square lawn of 1 m² = 1.35 Rs

cost of grassing a square lawn of A m² = 1.35A  Rs

cost of grassing a square lawn of A m² = 72037. 35  Rs

=> 1.35A = 72037. 35

=> A = 53361 m²

Area of Square lawn  = Side²  = 53361

=> side = 231

Circumference = 4 * side  = 4 * 231  = 924 m

Two times wire = 2 * 924  = 1848 m

cost of fencing  it with wire two times at ₹2.85 per meter

=  1848 * 2.85

= Rs 5266.8

cost of fencing it with wire two times = Rs 5266.8

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