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Milk contains 5% of water. What quantity of pure milk should be added to 8 liters of milk to reduce this to 4%?1. 4 liters2. 2 liters3. 3 liters4. 1 liters |
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Answer» Correct Answer - Option 2 : 2 liters Given: Quantity of mixture = 8 liters Calculation: Let the percentage of quantity of mixture be 100x Milk Water Initial 95% 5% = 19 : 1 ----(1) Final 96% 4% = 24 : 1 ---(2) In both condition the ratio of water in mixture is same So, 20x = 8 ⇒ x = 2/5 Change in Milk = 5x = 5 × 2/5 = 2 liters ∴ MIlk added in mixture to reduce 4% of water is 2 liters |
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