If water consumption is reduced by 20% due to an increase in…
If water consumption is reduced by 20% due to an increase in water tax by 20%, then what will be the percentage increase/decrease in the total tax?
यदि जल कर में 20% की वृद्धि के कारण पानी की खपत में 20% की कमी हो जाती है, तो कुल कर में कितने प्रतिशत की वृद्धि/कमी होगी?
Detailed Solution & Logic
Correct Answer:
4% decrease / 4% कमी
Solution
मान लेते हैं प्रारंभिक खपत = 100 लीटर और प्रति लीटर कर = ₹100।
20% कर वृद्धि के बाद नया कर = ₹120।
20% खपत कम होने पर नई खपत = 80 लीटर।
पुराना कुल कर:
$100 \times 100 = 10000$
नया कुल कर:
$120 \times 80 = 9600$
कमी:
10000 - 9600 = 400
प्रतिशत कमी:
$\frac{400}{10000}\times100=4%$
सही उत्तर: 4% decrease / 4% कमी
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