Question
Download Solution PDFचीनी के मूल्य में 30% की वृद्धि हो जाती है। सीता को चीनी की खपत कितने प्रतिशत कम कर देनी चाहिए जिससे कि उसके व्यय में कोई वृद्धि न हो?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिया गया है:
चीनी के मूल्य में % वृद्धि = 25%
प्रयुक्त सूत्र:
व्यय = मूल्य × मात्रा
गणना:
माना चीनी पर शुरुआती व्यय 100 रुपये था।
अब, मूल्य में 30% की वृद्धि होती है।
नया मूल्य = (100 + 100 × 30%) = 130
व्यय को अपरिवर्तित रखने के लिए, 130 रुपये से 30 रुपये कम करना होगा।
⇒ 130 - 30 = 100
∴ व्यय में कमी = 30/130 × 100 =
Shortcut Trick
100 → + 30% → 130 _____ - Y% → 100
अब, Y = 30/130 × 100 =
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