IB ACIO Grade II practice question
A container contains 25 litres of pure milk. 6 litres are removed and replaced with water. This process is repeated once more. Find the percentage of milk remaining in the container.
From a IB ACIO Grade II Quantitative Aptitude practice set · Quantitative Aptitude
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Correct answer: (D) 0.5776
After each replacement, milk fraction is multiplied by (25-6)/25. After 2 replacements, milk fraction = [(25-6)/25]2 = 0.5776, i.e., 57.76%.
हिंदी में प्रश्न
एक बर्तन में 25 लीटर शुद्ध दूध है। 6 लीटर निकाल कर पानी से बदल दिया जाता है। यह प्रक्रिया एक बार और दोहराई जाती है। बर्तन में शेष दूध का प्रतिशत ज्ञात करें।
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सही उत्तर: (D) 0.5776
After each replacement, milk fraction is multiplied by (25-6)/25. After 2 replacements, milk fraction = [(25-6)/25]2 = 0.5776, i.e., 57.76%.
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