Question
Download Solution PDFपेट्रोल की कीमत (प्रति लीटर) 40% बढ़ जाती है। इसकी खपत कितने प्रतिशत कम कर दी जानी चाहिए ताकि इस पर होने वाला खर्च केवल 19% बढ़े?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिया गया है:
व्यय वृद्धि = 19%
प्रयुक्त सूत्र:
प्रारंभिक व्यय = प्रारंभिक कीमत × प्रारंभिक खपत
अंतिम व्यय = वृद्धि के बाद कीमत × कम खपत
अंतिम व्यय = 1.19 × प्रारंभिक व्यय
गणना:
माना पेट्रोल की प्रारंभिक कीमत = ₹100
वृद्धि के बाद कीमत = ₹140 (40% वृद्धि)
माना प्रारंभिक खपत = 100 लीटर
प्रारंभिक व्यय = 100 × 100 = ₹10,000
अंतिम व्यय = 1.19 × ₹10,000 = ₹11,900
⇒ 140 × x = 11,900
⇒ x = 85 लीटर
खपत में कमी = प्रारंभिक खपत - कम खपत
⇒ कमी = 100 - 85 = 15 लीटर
कमी प्रतिशत = (कमी ÷ प्रारंभिक खपत) × 100
⇒ कमी प्रतिशत = (15 ÷ 100) × 100 = 15%
∴ सही उत्तर विकल्प (2) है।
Last updated on Jun 26, 2025
-> The Staff Selection Commission has released the SSC GD 2025 Answer Key on 26th June 2025 on the official website.
-> The SSC GD Notification 2026 will be released in October 2025 and the exam will be scheduled in the month of January and February 2026.
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-> The candidates who will be appearing for the 2026 cycle in the exam must attempt the SSC GD Constable Previous Year Papers. Also, attempt SSC GD Constable Mock Tests.