Multiple choice

15 liters of a mixture contains 20% alcohol and rest water. If 3 liters of water is added in it, then percentage of alcohol in the new mixture will be - 15 ली. मिश्रण में 20% एल्कोहल है और शेष पानी है। यदि इसमें 3 ली. पानी मिला दिया जाता है तो नये मिश्रण में एल्कोहल का प्रतिशत होगा –

  1. 20%

  2. 25%

  3. 33.33%

  4. 16.67%
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D Correct answer
Explanation

Original mixture: 20% of 15L = 3L alcohol, 12L water. After adding 3L water, total = 18L, alcohol still = 3L. New percentage = (3/18)×100 = 16.67%. This is a dilution problem - alcohol amount stays constant while total volume increases.

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