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A 2 m-wide pathway is to be constructed all around on the inside of a rectangular plot whose area is 96 m². If the rate of construction is Rs. 50 per m², what is the total cost?

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A 2 m-wide pathway is to be constructed all around on the inside of a rectangular plot whose area is 96 m². If the rate of construction is Rs. 50 per m², what is the total cost? Answer: Rs. 3 600

Outer dimensions: 16 m by 6 m → area = 96 m² Inner rectangle (after 2 m margin on each side): Length = 16 − 2 − 2 = 12 m Breadth = 6 − 2 − 2 = 2 m Inner area = 12 × 2 = 24 m² Area of pathway: 96 − 24 = 72 m² Cost: 72 m₂ × Rs. 50/m₂ = Rs. 3 600

Question context

This question is part of 📏 Arithmetic Aptitude within the broader 🧠 Aptitude Mastery subject and appears in the ASF Airports Security Force preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.