RRB NTPC CBT-1 previous year question
The price of sugar is increased by 3%. How much percent the consumption of sugar must be reduced so as not to increase the expenditure on sugar? (correct your answer to one decimal place)
Asked in RRB NTPC 2026 — 14 June Shift 1 · Quantitative Aptitude
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Correct answer: (C) 2.9%
To keep expenditure constant when price rises by 3%, consumption must fall by 3/(100+3)*100 = 300/103 ≈ 2.9%.
हिंदी में प्रश्न
चीनी की कीमत में 3% की वृद्धि होती है। चीनी की खपत में कितने प्रतिशत की कमी की जानी चाहिए जिससे कि चीनी पर होने वाले व्यय में वृद्धि न हो पाए? (अपने उत्तर को दशमलव के एक स्थान तक Quilted कीजिए)
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (C) 1.7%
मूल्य में 3% वृद्धि होने पर व्यय स्थिर रखने के लिए, उपभोग में 3/(100+3)*100 = 300/103 ≈ 2.9% की कमी आवश्यक है।
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