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gross density MCQ Questions for Class 12

gross density se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

Practice Questions

12 questions tagged with gross density.

यदि किसी region की official density 360 है और total area का 10 प्रतिशत inland water है, तो land-only density कितनी होगी?

If a region's official density is 360 and 10 percent of total area is inland water, what is the land-only density?

Explanation opens after your attempt
Correct Answer

B. 400 व्यक्ति प्रति वर्ग किलोमीटर400 persons per square kilometre

Explanation

Simple Explanation

Land area total area का 90 percent है। Gross density \(360=P/A\) है। इसलिए land-only density \(P/(0.9A)=360/0.9=400\) व्यक्ति प्रति वर्ग किलोमीटर होगी। दूसरा विकल्प सही है। Water area remove करने से denominator छोटा हो जाता है, इसलिए density बढ़ती है। / Land area is 90 percent of total area. Gross density is \(360=P/A\). Therefore, land-only density is \(P/(0.9A)=360/0.9=400\) persons per square kilometre. The second option is correct. Removing water from the denominator reduces the area and therefore increases density.

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यदि किसी city की gross density 600 और land-only density 750 व्यक्ति प्रति वर्ग किलोमीटर है, तो water bodies total area का कितना प्रतिशत हैं?

If a city's gross density is 600 and its land-only density is 750 persons per square kilometre, what percentage of total area consists of water bodies?

Explanation opens after your attempt
Correct Answer

B. 20 प्रतिशत20 percent

Explanation

Simple Explanation

Gross density \(P/A=600\) और land density \(P/L=750\) है। इसलिए \(L/A=600/750=0.8\)। Land total area का 80 percent है, इसलिए water bodies 20 percent हैं। दूसरा विकल्प सही है। यह example दिखाता है कि density values से boundary composition infer की जा सकती है। / Gross density is \(P/A=600\), while land-only density is \(P/L=750\). Therefore, \(L/A=600/750=0.8\). Land occupies 80 percent of total area, so water bodies occupy 20 percent. The second option is correct. This example shows how density values can be used to infer boundary composition.

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यदि किसी city की gross density 450 और net residential density 1125 व्यक्ति प्रति वर्ग किलोमीटर है, तो residential land total area का कितना प्रतिशत है?

If a city's gross density is 450 and net residential density is 1125 persons per square kilometre, what percentage of total area is residential land?

Explanation opens after your attempt
Correct Answer

B. 40 प्रतिशत40 percent

Explanation

Simple Explanation

Gross density \(P/A=450\) और net residential density \(P/R=1125\) है। इसलिए \(R/A=450/1125=0.4\)। Residential land total area का 40 percent है। दूसरा विकल्प सही है। Net density अधिक है क्योंकि denominator smaller residential area है। / Gross density is \(P/A=450\), while net residential density is \(P/R=1125\). Therefore, \(R/A=450/1125=0.4\). Residential land is 40 percent of total area, making the second option correct. Net density is higher because its denominator is the smaller residential area.

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यदि किसी city की gross density 420 है और land-only density 560 व्यक्ति प्रति वर्ग किलोमीटर है, तो water bodies total municipal area का कितना प्रतिशत हैं?

If a city's gross density is 420 and its land-only density is 560 persons per square kilometre, what percentage of total municipal area consists of water bodies?

Explanation opens after your attempt
Correct Answer

B. 25 प्रतिशत25 percent

Explanation

Simple Explanation

Gross density \(P/A=420\) और land-only density \(P/L=560\) है। इसलिए \(L/A=420/560=0.75\)। Land total area का 75 percent है, इसलिए water bodies remaining 25 percent हैं। दूसरा विकल्प सही है। Density differences से area composition infer की जा सकती है जब numerator population same हो। / Gross density is \(P/A=420\), while land-only density is \(P/L=560\). Thus \(L/A=420/560=0.75\). Land occupies 75 percent of total area, so water bodies occupy the remaining 25 percent. Therefore, the second option is correct. When the same population is used as the numerator, density differences can reveal area composition.

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यदि किसी city की gross density 540 व्यक्ति प्रति वर्ग किलोमीटर है और residential land total municipal area का 45 प्रतिशत है, तो all residents residential land पर रहने की स्थिति में net residential density कितनी होगी?

If a city's gross density is 540 persons per square kilometre and residential land is 45 percent of total municipal area, what is the net residential density if all residents live on residential land?

Explanation opens after your attempt
Correct Answer

C. 1200 व्यक्ति प्रति वर्ग किलोमीटर1200 persons per square kilometre

Explanation

Simple Explanation

Gross density \(P/A=540\) है और residential area \(0.45A\) है। इसलिए net residential density \(P/(0.45A)=540/0.45=1200\) व्यक्ति प्रति वर्ग किलोमीटर होगी। तीसरा विकल्प सही है। Residential denominator छोटा होने से net density gross density से अधिक होती है। परीक्षा में gross and net density के denominator का difference ध्यान से समझें। / Gross density is \(P/A=540\), while residential area is \(0.45A\). Therefore, net residential density is \(P/(0.45A)=540/0.45=1200\) persons per square kilometre. The third option is correct. Because the residential denominator is smaller, net density is higher than gross density. In examinations, carefully distinguish the denominator used in gross and net density calculations.

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यदि किसी region की population density 320 है और total area का 25 प्रतिशत water है, तो land-only density कितनी होगी?

If a region has a population density of 320 and 25 percent of total area is water, what is the land-only density?

Explanation opens after your attempt
Correct Answer

B. 426.7 व्यक्ति प्रति वर्ग किलोमीटर426.7 persons per square kilometre

Explanation

Simple Explanation

Land area total का 75 percent है। Gross density \(320=P/A\) है। इसलिए land-only density \(P/(0.75A)=320/0.75=426.67\) व्यक्ति प्रति वर्ग किलोमीटर होगी। दूसरा विकल्प सही है। Water area remove करने से denominator smaller हो जाता है और density बढ़ती है। / Land area is 75 percent of total area. Gross density is \(320=P/A\). Therefore, land-only density is \(P/(0.75A)=320/0.75=426.67\) persons per square kilometre. The second option is correct. Removing water area reduces the denominator and therefore increases the calculated density.

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यदि किसी city की gross density 500 और land-only density 625 व्यक्ति प्रति वर्ग किलोमीटर है, तो water bodies total municipal area का कितना percent हैं?

If a city's gross density is 500 and its land-only density is 625 persons per square kilometre, what percentage of total municipal area consists of water bodies?

Explanation opens after your attempt
Correct Answer

B. 20 प्रतिशत20 percent

Explanation

Simple Explanation

Gross density \(P/A=500\) और land-only density \(P/L=625\) है। इसलिए \(L/A=500/625=0.8\)। Land total area का 80 percent है, इसलिए water bodies remaining 20 percent हैं। दूसरा विकल्प सही है। Density differences से area composition infer किया जा सकता है जब population same numerator हो। / Gross density is \(P/A=500\), while land-only density is \(P/L=625\). Thus \(L/A=500/625=0.8\). Land occupies 80 percent of total area, so water bodies occupy the remaining 20 percent. Therefore, the second option is correct. Area composition can be inferred from density differences when the same population is used as numerator.

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यदि किसी city की gross density 360 और net residential density 900 व्यक्ति प्रति वर्ग किलोमीटर है, तो residential land total municipal area का कितना percent है?

If a city's gross density is 360 and net residential density is 900 persons per square kilometre, what percentage of total municipal area is residential land?

Explanation opens after your attempt
Correct Answer

B. 40 प्रतिशत40 percent

Explanation

Simple Explanation

Gross density \(P/A=360\) और net residential density \(P/R=900\) है। Therefore \(R/A = 360/900 = 0.4\)। इसलिए residential land total area का 40 percent है और दूसरा विकल्प सही है। Net density higher है क्योंकि denominator residential area smaller है। / Gross density is \(P/A=360\), while net residential density is \(P/R=900\). Therefore, \(R/A=360/900=0.4\). Residential land is 40 percent of total municipal area, making the second option correct. Net density is higher because its denominator, residential area, is smaller than total municipal area.

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यदि किसी city की total density 350 है लेकिन केवल 70 प्रतिशत municipal area land है और बाकी water body है, तो केवल land area के आधार पर density कितनी होगी?

If a city's total density is 350 but only 70 percent of the municipal area is land and the rest is water, what is the density based only on land area?

Explanation opens after your attempt
Correct Answer

C. 500 व्यक्ति प्रति वर्ग किलोमीटर500 persons per square kilometre

Explanation

Simple Explanation

Municipal density total area पर 350 है। यदि land area केवल \(0.70A\) है और population land पर रहती है, तो land-based density \(350/0.70 = 500\) व्यक्ति प्रति वर्ग किलोमीटर होगी। तीसरा विकल्प सही है। Water area denominator में शामिल होने से gross municipal density actual land concentration को lower दिखाती है। / Municipal density is 350 over total area. If land occupies only \(0.70A\) and the population resides on that land, land-based density is \(350/0.70 = 500\) persons per square kilometre. Therefore, the third option is correct. Including water in the denominator lowers the gross municipal density relative to actual concentration on land.

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यदि किसी city की arithmetic density 480 व्यक्ति प्रति वर्ग किलोमीटर है और केवल 32 प्रतिशत area residential use में है, तो सभी residents उसी residential area में रहने पर net residential density कितनी होगी?

If a city's arithmetic density is 480 persons per square kilometre and only 32 percent of its area is residential, what is the net residential density if all residents live within that residential area?

Explanation opens after your attempt
Correct Answer

B. 1500 व्यक्ति प्रति वर्ग किलोमीटर1500 persons per square kilometre

Explanation

Simple Explanation

Gross arithmetic density \(P/A=480\) है। Residential area \(0.32A\) है। इसलिए net residential density \(P/(0.32A)=480/0.32=1500\) व्यक्ति प्रति वर्ग किलोमीटर होगी। दूसरा विकल्प सही है। Residential land total area से काफी कम होने के कारण net density gross density से बहुत अधिक है। परीक्षा में gross density और net residential density के denominator अलग होने को समझना आवश्यक है। / Gross arithmetic density is \(P/A=480\). Residential area is \(0.32A\). Therefore, net residential density is \(P/(0.32A)=480/0.32=1500\) persons per square kilometre. The second option is correct. Because residential land occupies much less than total area, net density is substantially higher than gross density. In examinations, remember that gross density and net residential density use different denominators.

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यदि किसी city की gross density 240 व्यक्ति प्रति वर्ग किलोमीटर है और residential land total area का केवल 40 प्रतिशत है, तो all residents residential land पर रहने की स्थिति में net residential density कितनी होगी?

If a city's gross density is 240 persons per square kilometre and residential land is only 40 percent of total area, what is the net residential density if all residents live on residential land?

Explanation opens after your attempt
Correct Answer

C. 600 व्यक्ति प्रति वर्ग किलोमीटर600 persons per square kilometre

Explanation

Simple Explanation

Gross density \(P/A = 240\) है। Residential area \(0.4A\) है, इसलिए net residential density \(P/(0.4A)=240/0.4=600\) persons per square kilometre होगी। इसलिए तीसरा विकल्प सही है। यह distinction urban geography में महत्वपूर्ण है क्योंकि large non-residential areas gross density को काफी कम दिखा सकते हैं। / Gross density is \(P/A = 240\). Residential area is \(0.4A\), so net residential density is \(P/(0.4A)=240/0.4=600\) persons per square kilometre. Therefore, the third option is correct. This distinction is important in urban geography because large non-residential areas can make gross density appear substantially lower.

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यदि किसी city की gross density 300 व्यक्ति प्रति वर्ग किलोमीटर और net residential area total area का 60 प्रतिशत है, तथा सभी residents उसी residential area में रहते हैं, तो approximate net residential density क्या होगी?

If a city's gross density is 300 persons per square kilometre and net residential area is 60 percent of total area, with all residents living in that residential area, what is the approximate net residential density?

Explanation opens after your attempt
Correct Answer

C. 500 व्यक्ति प्रति वर्ग किलोमीटर500 persons per square kilometre

Explanation

Simple Explanation

Gross density \(P/A\) है। Residential area \(0.6A\) है, इसलिए net residential density \(P/(0.6A) = \frac{1}{0.6}(P/A)\)। यह \(300/0.6 = 500\) persons per square kilometre होती है। इसलिए तीसरा विकल्प सही है। Net residential area छोटा होने के कारण net density gross density से अधिक होती है। / Gross density is \(P/A\). Residential area is \(0.6A\), so net residential density is \(P/(0.6A)=\frac{1}{0.6}(P/A)\). Thus \(300/0.6=500\) persons per square kilometre. Therefore, the third option is correct. Because the net residential area is smaller than total area, net residential density is higher than gross density.

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