Multiple choice

In a mixture of 240 lt. water is 20% and rest is Milk. What quantity of mixture should be taken out and replaced with water so that water becomes 40%.

  1. 40 liter

  2. 60 liter

  3. 45 liter

  4. 80 liter

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Initial water: 20% of 240L = 48L. When 60L removed, water removed = 20% of 60L = 12L, remaining water = 36L. After adding 60L water, total water = 96L. Final mixture = 240L, water percentage = 96/240 × 100 = 40%. This uses the replacement formula: amount replaced = (target% - initial%) × total / target%.

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