For every question, four probable answers bear in letters (A), (B), (C) and (D) are given. Only one out of these is correct. You have to choose the correct answer.
What will be the cost of fencing a square park of side 210 m if the cost of fencing is Rs. 5.50 per meter?

Options

A. Rs. 4620
B. Rs.4000
C. Rs.4680
D. Rs. 4840

Answer

To solve the problem of finding the cost of fencing a square park with a side length of 210 meters at a cost of Rs. 5.50 per meter, we can follow these steps:

### Step 1: Calculate the Perimeter of the Square Park
The formula for the perimeter (P) of a square is given by:
\[ P = 4 \times \text{side} \]

Here, the side of the square park is 210 meters.

So, we calculate:
\[ P = 4 \times 210 \]
\[ P = 840 \text{ meters} \]

### Step 2: Calculate the Cost of Fencing
The cost of fencing per meter is Rs. 5.50. To find the total cost (C) of fencing the entire perimeter, we use the formula:
\[ C = \text{Cost per meter} \times \text{Perimeter} \]

Substituting the values we have:
\[ C = 5.50 \times 840 \]

Now, we perform the multiplication:
\[ C = 4620 \text{ Rs.} \]

### Conclusion
The total cost of fencing the square park is Rs. 4620.

### Final Answer
The correct answer is **Option A: Rs. 4620**.

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