Question

A square piece of field has side each equal to 150m if three layers of barbed wire has to be used to fence it what is the length of the wire required ?Also find the total cost of the wire if a meter of wire cost 2rupees​

Answer 1

Answer:

Answer is 450 m of wore is required and the cost is 900 rupees because we multiply 2 by 900

Answer 2

Answer:

Side of square field = 150 metre

1 layer of wire around square field = permeter of square

Now, Perimeter of square is calculated

\begin{gathered}Perimeter = 4 \times 150\\\\ Perimeter = 600m\end{gathered}

Perimeter= 4×150

Perimeter=600m

For 1 layer of barbed wire, wire needed = 600m=600m

Thus, for 3 layer of barbed wire, wire needed =3 \times 600 = 1800 m=3×600=1800m

Thus, length of wire required is 1800 meter.

Also, cost of 1 metre of wire = Rs 2=Rs2

Thus, cost of 1800 metres of wire = 1800 \times 2 = Rs 3600=1800×2=Rs3600

Thus, total cost of wire is Rs 3600