A rectangular plot has its length 40 m and breadth 15 m.
Calculate the cost of fencing the plot at ₹ 30 per metre.

Answer

To solve the problem step by step, we will follow these instructions:

### Step 1: Identify the dimensions of the rectangular plot.
- Given: Length = 40 m, Breadth = 15 m.

### Step 2: Use the formula for the perimeter of a rectangle.
- The formula for the perimeter (P) of a rectangle is:
\[ P = 2 \times (Length + Breadth) \]

### Step 3: Substitute the values into the formula.
- Substitute the given length and breadth into the formula:
\[ P = 2 \times (40 \, \text{m} + 15 \, \text{m}) \]

### Step 4: Calculate the sum of length and breadth.
- Calculate \( 40 + 15 \):
\[ 40 + 15 = 55 \, \text{m} \]

### Step 5: Calculate the perimeter.
- Now calculate the perimeter:
\[ P = 2 \times 55 \, \text{m} = 110 \, \text{m} \]

### Step 6: Calculate the cost of fencing.
- The cost of fencing is calculated by multiplying the perimeter by the cost per meter:
\[ \text{Cost} = P \times \text{Cost per meter} \]
- Substitute the values:
\[ \text{Cost} = 110 \, \text{m} \times 30 \, \text{₹/m} \]

### Step 7: Perform the multiplication to find the total cost.
- Calculate the total cost:
\[ \text{Cost} = 110 \times 30 = 3300 \, \text{₹} \]

### Final Answer:
- The cost of fencing the rectangular plot is ₹ 3300.

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