यदि किसी region की average density 200 है लेकिन 40 प्रतिशत area uninhabitable है और सभी residents बाकी area में रहते हैं, तो habitable-area density कितनी होगी?
Explanation opens after your attempt
C. 333.3 व्यक्ति प्रति वर्ग किलोमीटर333.3 persons per square kilometre
Simple Explanation
Habitable area total area का 60 percent है। यदि total population same है, तो habitable-area density \(200/0.60 = 333.3\) persons per square kilometre होगी। इसलिए तीसरा विकल्प सही है। Arithmetic density पूरे area को denominator में रखती है, इसलिए actual habitable-zone concentration lower दिखाई पड़ सकती है। / Habitable land is 60 percent of total area. With the same total population, density over the habitable area is \(200/0.60 = 333.3\) persons per square kilometre. Therefore, the third option is correct. Arithmetic density uses the entire area in the denominator and can therefore make concentration within habitable zones appear lower than it actually is.
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