Question

Find the cost of ploughing a field $\text{45 m}$ along and $\text{26 m}$ wide at $\text{1.50 rupees}$ per square metre. Find the cost of fencing it at $\text{3 rupees}$per metre.

Answer 1

Step 1: Finding the ploughing cost

Length of the field is $\text{45 m}$ and width is $\text{26 m}$

Ploughing cost $\text{1.50 rupees}$ per meter and Fencing cost $\text{3 rupees}$ per meter

Area of field $\text{= length× breadth}$

$=45\times 26$

${\text{= 1170 m}}^2$

The ploughing cost will be $=1170\times 1.50$

$\text{= 1755 rupees}$

Step 2: Finding the fencing cost

Perimeter $\text{= 2}\left(\text{45 + 26}\right)$

$\text{= 2 ×}\left(71\right)$

$\text{= 142 m}$

The fencing cost $\text{= 142 × 3}$

$\text{= 426 rupees}$

Hence, the ploughing cost of the field is $\text{1755 rupees}$ and Fencing cost is $\text{426 rupees}$.