SSC GD Constable previous year question
The price (per litre) of petrol increases by 85%. By what percent should its consumption be reduced such that the expenditure on it increases by 11% only?
Asked in SSC GD Constable 2025: 11 Feb 2025 Shift 1 · Quantitative Aptitude
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Correct answer: (C) 40%
New expenditure factor = 1.85 × (1 − r) = 1.11 → (1 − r) = 0.6 → r = 0.4 = 40%.
हिंदी में प्रश्न
पेट्रोल की कीमत (प्रति लीटर) में 85% की वृद्धि होती है। इसकी खपत में कितने प्रतिशत की कमी की जानी चाहिए ताकि इस पर होने वाला व्यय केवल 11% ही बढ़े?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (C) 40%
नया व्यय गुणक = 1.85 × (1 − r) = 1.11 → (1 − r) = 0.6 → r = 0.4 = 40%।
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