Multiple choice

In a 30 litre mixture of milk and water, 30% is water and the rest is milk. If 9 litres of milk is mixed in it, then what will be the approximate percentage of water in the new mixture?

  1. 20%

  2. 23%

  3. 25%

  4. 28%

  5. 33%
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Initial: 30L, 30% water = 9L water, 21L milk. Add 9L milk: New total = 39L, water = 9L. Percentage = (9/39) * 100 = 23.07%.

AI explanation

The initial 30-litre mixture contains 9 litres of water (which is 30%), and adding 9 litres of milk makes the new total volume 39 litres. To find the new percentage of water, divide the 9 litres of water by the new total volume of 39 litres and multiply by 100, yielding 23.07%. This calculation results in an approximate water percentage of 23%.

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