Multiple choice

Ration of milk is to water in certain solution of 75 litres is 2 :1 . How much water is to be mixed in solution so that ratio becomes 1 : 2:

  1. 75 litres

  2. 60 litres

  3. 65 litres

  4. 80 litres
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A Correct answer
Explanation

Initial milk = 50L, water = 25L. Let x be water added. New ratio: 50 / (25 + x) = 1/2. So 100 = 25 + x, which means x = 75.

AI explanation

In the initial 75 litres of solution, the quantity of milk is (2/3) * 75 = 50 litres and the quantity of water is 25 litres. Let x litres of water be added so the new ratio of milk to water becomes 1:2, giving the equation 50 / (25 + x) = 1/2. Solving this equation yields 25 + x = 100, which means x = 75 litres of water must be added.

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