किसी region का density 625 है। population और area दोनों 44 प्रतिशत बढ़ते हैं। नया density कितना होगा?
A region has density 625. Both population and area increase by 44 percent. What is the new density?
Explanation opens after your attempt
B. 625 व्यक्ति प्रति वर्ग किलोमीटर625 persons per square kilometre
Simple Explanation
नई population \(1.44P\) और area \(1.44A\) होगा। नया density \(\frac{1.44P}{1.44A}=\frac{P}{A}=625\) रहेगा। इसलिए विकल्प B सही है। equal proportional growth density ratio को नहीं बदलता। परीक्षा में large percentage values से भ्रमित नहीं होना चाहिए; common multiplication factor numerator और denominator में cancel हो जाता है। / New population is \(1.44P\) and area is \(1.44A\). New density becomes \(\frac{1.44P}{1.44A}=\frac{P}{A}=625\). Therefore option B is correct. Equal proportional growth does not change the density ratio. Large percentage values should not be distracting because the common multiplication factor cancels from numerator and denominator.
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