The area of a circular field is 13.86 hectares. The cost of farming it at the rate of 20 rupee per `metre^2` is -----

Options

A. 27720
B. 6930
C. 3240
D. 1980

Answer

To solve the problem step by step, we need to follow these calculations:

### Step 1: Convert hectares to square meters
1 hectare is equal to 10,000 square meters. Therefore, to convert 13.86 hectares to square meters, we multiply by 10,000.

\[ \text{Area in square meters} = 13.86 \, \text{hectares} \times 10,000 \, \text{m}^2/\text{hectare} = 138600 \, \text{m}^2 \]

### Step 2: Calculate the cost of farming
The cost of farming is given as 20 rupees per square meter. To find the total cost, we multiply the area in square meters by the cost per square meter.

\[ \text{Cost} = \text{Area} \times \text{Cost per square meter} \]
\[ \text{Cost} = 138600 \, \text{m}^2 \times 20 \, \text{rupees/m}^2 = 2772000 \, \text{rupees} \]

### Conclusion
The total cost of farming the circular field is **2,772,000 rupees**.

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