Find the cost of fencing of a rectangular land. If it has an area of 100 m² and one side of length 20 m at a rate of 30 per meter.
Given:
Area of the rectangle = 100 m²
Length = 20 m
Rate of fencing = ₹30 per meter
Formula used:
Width of the rectangle
width =
Perimeter of the rectangle
Perimeter = 2×(Length + Width)
Solution:
Width = = 5 m
Perimeter = 2×(20+5)=50m2 \times (20 + 5) = 50 \, \text{m}2× (20+5) = 50m
Cost = 50×30 = 1500
The cost of fencing is ₹1500.
Thus, correct option is (d)
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