Question

Find the cost of fencing wire to be wound four times around a square shaped flower garden of side 60 m, if the rate of fencing wire is ₹15 per metre.

• A. ₹ 13,200
• B. ₹ 14,600
• C. ₹ 14,400
• D. ₹ 13,800

Answer 1

The correct option is C ₹ 14,400

Let the side of square shaped flower garden be 'a'.
a = 60 m (given)

$\Rightarrow$ Perimeter of the flower garden
= 4 × a = 4 × 60 = 240 m

Hence, length of fencing wire required for one round around the garden = 240 m

The length of fencing wire required for four rounds around the garden = 4 × 240 = 960 m

Cost of the fencing wire = ₹ 15 per metre
Total cost of the fencing wire = length of the wire required × cost of the fencing wire
= 960 × 15 = ₹ 14,400

So, total cost of the fencing wire is ₹14,400.