SSC GD Constable previous year question
In a mixture, milk and water are in the ratio of 7 : 9. Some milk is added to the mixture because of which the ratio of milk and water becomes 11 : 9. How much milk was added as a percentage of the initial mixture?
Asked in SSC GD Constable 2024: 24 Feb 2024 Shift 2 · Quantitative Aptitude
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Correct answer: (C) 25 percent
Milk=7k, water=9k. Adding x milk: (7k+x)/9k=11/9 ⟹ x=4k, which is 4k/16k×100=25% of the initial mixture.
हिंदी में प्रश्न
एक मिश्रण में, दूध और पानी का अनुपात 7 : 9 है। मिश्रण में कुछ दूध मिलाया जाता है जिसके कारण दूध और पानी का अनुपात 11 : 9 हो जाता है। प्रारंभिक मिश्रण के प्रतिशत के रूप में, मिश्रण में कितना दूध मिलाया गया?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (C) 60 प्रतिशत
Milk=7k, water=9k. Adding x milk: (7k+x)/9k=11/9 ⟹ x=4k, which is 4k/16k×100=25% of the initial mixture.
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