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area multiplier MCQ Questions for Class 12

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4 questions tagged with area multiplier.

Question 1/4 Expert Geography The World Population – Distribution, Density and Growth Population Density Class 12 Level 19

यदि किसी region की density 300 से बढ़कर 375 हो और area 20 प्रतिशत बढ़े, तो population में कितने प्रतिशत वृद्धि हुई?

If a region's density rises from 300 to 375 while area increases by 20 percent, by what percentage did population increase?

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Correct Answer

C. 50 प्रतिशत50 percent

Explanation

Simple Explanation

Density multiplier \(375/300 = 1.25\) है। Area multiplier 1.20 है। इसलिए population multiplier \(1.25 \times 1.20 = 1.50\) होगा। Population 50 percent बढ़ी और तीसरा विकल्प सही है। केवल density increase 25 percent को population increase मानना गलत होगा क्योंकि area भी बढ़ी है। / The density multiplier is \(375/300=1.25\). The area multiplier is 1.20. Therefore, population multiplier is \(1.25 \times 1.20 = 1.50\). Population increased by 50 percent, so the third option is correct. It would be wrong to treat the 25 percent density increase as the population increase because area also expanded.

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Question 2/4 Hard Geography The World Population – Distribution, Density and Growth Population Density Class 12 Level 20

यदि population 50 प्रतिशत बढ़े और density 25 प्रतिशत घटे, तो area कितनी गुना होगा?

If population increases by 50 percent and density decreases by 25 percent, how many times will area become?

Explanation opens after your attempt

Correct Answer

C. 2 गुना2 times

Explanation

Simple Explanation

Area multiplier \(=\frac{1.5}{0.75}=2\) है। इसलिए area original की double होगी और तीसरा विकल्प सही है। Population बढ़ने और density घटने दोनों conditions को satisfy करने के लिए area का पर्याप्त विस्तार जरूरी है। परीक्षा में \(A=P/D\) relation combined proportional questions में सीधे उपयोग करें। / The area multiplier is \(\frac{1.5}{0.75}=2\). Therefore, area becomes twice its original size and the third option is correct. To satisfy both a population increase and a density decrease, area must expand sufficiently. In examinations, use the relationship \(A=P/D\) directly for combined proportional-change questions.

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Question 3/4 Hard Geography The World Population – Distribution, Density and Growth Population Density Class 12 Level 20

यदि population 60 प्रतिशत बढ़ती है जबकि density 28 प्रतिशत बढ़ती है, तो area multiplier लगभग कितना होगा?

If population increases by 60 percent while density increases by 28 percent, what is the approximate area multiplier?

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Correct Answer

C. 1.25

Explanation

Simple Explanation

Area multiplier \(=\frac{Population\ multiplier}{Density\ multiplier} = \frac{1.60}{1.28} = 1.25\)। इसलिए area 1.25 times अर्थात 25 percent बढ़ा और तीसरा विकल्प सही है। यदि area unchanged होता तो density भी 60 percent बढ़ती। परीक्षा में \(A=P/D\) relation proportional-change questions में बहुत उपयोगी है। / Area multiplier equals population multiplier divided by density multiplier: \(\frac{1.60}{1.28}=1.25\). Therefore, area became 1.25 times its original size, or increased by 25 percent, making the third option correct. If area had remained unchanged, density would also have increased by 60 percent. The relation \(A=P/D\) is very useful in proportional-change questions.

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Question 4/4 Medium Geography The World Population – Distribution, Density and Growth Population Density Class 12 Level 19

यदि population तीन गुना और area डेढ़ गुना हो जाए, तो density कितनी गुना होगी?

If population becomes three times and area becomes one and a half times, how many times will density become?

Explanation opens after your attempt

Correct Answer

B. 2 गुना2 times

Explanation

Simple Explanation

New density \(\frac{3P}{1.5A} = 2\frac{P}{A}\) है। इसलिए density original की exactly double होगी और दूसरा विकल्प सही है। Population तीन गुना हुई लेकिन area भी 1.5 times बढ़ा, इसलिए density तीन गुना नहीं होती। परीक्षा में multiplier form से ratio simplify करना ऐसे questions के लिए सबसे आसान तरीका है। / The new density is \(\frac{3P}{1.5A} = 2\frac{P}{A}\). Therefore, density becomes exactly twice the original value, making the second option correct. Population triples, but area also increases by 1.5 times, so density does not triple. In examinations, expressing changes as multipliers and simplifying the ratio is the easiest method for such questions.

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area multiplier MCQ Questions for Class 12

Practice Questions

यदि किसी region की density 300 से बढ़कर 375 हो और area 20 प्रतिशत बढ़े, तो population में कितने प्रतिशत वृद्धि हुई?

Simple Explanation

यदि population 50 प्रतिशत बढ़े और density 25 प्रतिशत घटे, तो area कितनी गुना होगा?

Simple Explanation

यदि population 60 प्रतिशत बढ़ती है जबकि density 28 प्रतिशत बढ़ती है, तो area multiplier लगभग कितना होगा?

Simple Explanation

यदि population तीन गुना और area डेढ़ गुना हो जाए, तो density कितनी गुना होगी?

Simple Explanation

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area multiplier MCQ Questions for Class 12

Practice Questions

यदि किसी region की density 300 से बढ़कर 375 हो और area 20 प्रतिशत बढ़े, तो population में कितने प्रतिशत वृद्धि हुई?

Simple Explanation

यदि population 50 प्रतिशत बढ़े और density 25 प्रतिशत घटे, तो area कितनी गुना होगा?

Simple Explanation

यदि population 60 प्रतिशत बढ़ती है जबकि density 28 प्रतिशत बढ़ती है, तो area multiplier लगभग कितना होगा?

Simple Explanation

यदि population तीन गुना और area डेढ़ गुना हो जाए, तो density कितनी गुना होगी?

Simple Explanation

area multiplier Revision Links

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Search area multiplier

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