The price of a commodity is increased by 25%. A consumer reduces his consumption by 16%. After this, his expenditure is ₹210 more than before. What was his original expenditure? / किसी वस्तु की कीमत में 25% की वृद्धि होती है। उपभोक्ता अपनी खपत में 16% की कमी करता है। इसके बाद उसका खर्च पहले से ₹210 अधिक हो जाता है। उसका मूल खर्च कितना था?
Answer and explanation are free to read — no sign-in required. / उत्तर और व्याख्या पढ़ने के लिए साइन-इन आवश्यक नहीं है।
Correct Answer / सही उत्तर
C. ₹4,200 / ₹4,200
Explanation / व्याख्या
Expenditure factor = 1.25 × 0.84 = 1.05. Hence expenditure increases by 5%. If 5% = ₹210, original expenditure = 210 × 100/5 = ₹4,200. / खर्च का गुणक = 1.25 × 0.84 = 1.05। अतः खर्च में 5% वृद्धि होती है। यदि 5% = ₹210, तो मूल खर्च = ₹4,200।
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