Simple Explanation
पहले population \(600 \times 300 = 180000\) होगी। New area 360 square kilometres है और population unchanged रहती है। इसलिए new density \(180000/360 = 500\) persons per square kilometre है। दूसरा विकल्प सही है। यह two-step question है जिसमें पहले original density से population निकालना और फिर new area के साथ density recompute करना आवश्यक है। / First calculate population as \(600 \times 300 = 180000\). The new area is 360 square kilometres and population remains unchanged. Therefore, the new density is \(180000/360 = 500\) persons per square kilometre. The second option is correct. This is a two-step question requiring the original population to be found first and then density to be recalculated using the new area.
