Final answer:
The cost of fencing a circular park with a diameter of 98 meters at a rate of 4 rupees per meter is 392 rupees.
Step-by-step explanation:
To find the cost of fencing a circular park, we need to calculate the circumference of the circle and then multiply it by the given rate. The formula to find the circumference of a circle is C = πD, where C is the circumference and D is the diameter. Plugging in the given diameter of 98 meters, we get C = π(98) = 98π meters. Next, we multiply the circumference by the rate of 4 rupees per meter to find the cost. Therefore, the cost of fencing the circular park is 4 * 98π = 392π rupees. Since the question asks for the answer in rupees, we need to approximate π.
The value of π is approximately 3.14, so we can substitute this value into the equation to get 392 * 3.14 = 1230.88 rupees. Therefore, the correct answer is A) 392 rupees.
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