एक परिवार की आय और व्यय का अनुपात 10:7 है। यदि परिवार का व्यय 10,500 रुपये है, तो परिवार की बचत है:

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WEBCSC 05/2021 Common Official Paper (Morning Shift)
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  1. 4,500 रुपये
  2. 10,000 रुपये
  3. 4,000 रुपये
  4. 5,000 रुपये

Answer (Detailed Solution Below)

Option 1 : 4,500 रुपये
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दिया गया है:

परिवार की आय और व्यय का अनुपात = 10:7

परिवार का व्यय = 10,500 रुपये

प्रयुक्त सूत्र:

बचत = आय - व्यय

गणना:

मान लीजिए आय 10x और व्यय 7x है।

दिया गया है, 7x = 10,500

⇒ x = 10,500 / 7

⇒ x = 1,500

आय = 10x = 10 × 1,500 = 15,000

बचत = आय - व्यय

⇒ बचत = 15,000 - 10,500

⇒ बचत = 4,500

परिवार की बचत 4,500 रुपये है।

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