Simple Explanation
जब वही population आधे inhabited area में रहती है, तो persons per unit inhabited area double हो जाते हैं। यदि original density \(P/A\) थी, तो new density \(P/(A/2)=2P/A\) होगी। इसलिए तीसरा विकल्प सही है। यह arithmetic reasoning actual inhabited land पर apply होती है। परीक्षा में denominator के रूप में कौन-सा area use हो रहा है, यह पहचानना महत्वपूर्ण है। / When the same population occupies half the inhabited area, persons per unit inhabited area double. If the original density was \(P/A\), the new density becomes \(P/(A/2)=2P/A\). Therefore, the third option is correct. This arithmetic reasoning applies to the area actually used in the density calculation. In examinations, identify carefully which area is being used as the denominator.
