A plot is in the shape of the region between y = √x, y = x. The cost of fencing at ₹50 per unit length of perimeter is approximately (use integration for arc length if needed, but area in sq units is asked here). Actually, if land price is ₹200 per sq unit, the total land co…

A plot is in the shape of the region between y = √x, y = x. The cost of fencing at ₹50 per unit length of perimeter is approximately (use integration for arc length if needed, but area in sq units is asked here). Actually, if land price is ₹200 per sq unit, the total land cost is:

• A. ₹100/3
• B. ₹200/3
• C. ₹400/3
• D. ₹50

Answer: A) ₹100/3

Explanation: Area = 1/6 sq unit. Cost = (1/6) × 200 = ₹100/3.