यदि cultivated-land density arithmetic density की 2.5 गुना है, तो cultivated land total area का कितना प्रतिशत है?
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B. 40 प्रतिशत40 percent
Simple Explanation
Arithmetic density \(P/A\) और cultivated density \(P/C\) है। यदि \(P/C=2.5(P/A)\), तो \(A/C=2.5\), इसलिए \(C/A=1/2.5=0.4\)। Cultivated land total area का 40 percent है। इसलिए दूसरा विकल्प सही है। यह denominator ratio का direct application है। / Arithmetic density is \(P/A\), while cultivated-land density is \(P/C\). If \(P/C=2.5(P/A)\), then \(A/C=2.5\), so \(C/A=1/2.5=0.4\). Cultivated land is therefore 40 percent of total area. The second option is correct. This is a direct application of the relationship between density and denominator size.
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