Question

Karan wants to fence his square field from three sides. Calculate the total cost of the fence if the cost of fencing the field is ₹ 10 per metre.

• A. ₹ 220
• B. ₹210
• C. ₹ 201
• D. ₹215

Answer 1

The correct option is B

₹210

To find out the total cost of the fence, first of all, we have to find the length of the field that has to be fenced.

So, the length of the field that has to be fenced (include only three sides according to the question), L = (7 + 7 + 7) m = 21 m

So, the total cost of the fence
= L x rate of fencing
= 21 m $\times$ ₹ 10/m
= ₹ 210