Question
Download Solution PDFशहराची लोकसंख्या दरवर्षी 5% वाढते. जर सध्याची लोकसंख्या 9261 असेल तर 3 वर्षांपूर्वीची लोकसंख्या किती होती?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFयोग्य उत्तर पर्याय 4 आहे.
Key Points
लोकसंख्या वाढीचे सूत्र वापरा
P = P₀ × (1 + r)3
येथे:
P = सध्याची लोकसंख्या = 9261
r = वाढीचा दर = 5% = 0.05
P₀ साठी सोडवा
P₀ = \(\frac{P}{(1 + r)^3}\) = \(\frac{9261}{(1.05)^3}\)
\((1.05)^3 \) = 1.157625 मोजा
P₀ मोजा
P₀ = \(\frac{9261}{1.157625}\) = अंदाजे 8000
3 वर्षांपूर्वी लोकसंख्या सुमारे 8000 होती.
म्हणून योग्य उत्तर पर्याय 4 आहे.
Last updated on Jul 3, 2025
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