Question

In a mixture, milk and water are in ratio of 2 : 3. Some milk is added to the mixture because of which ratio of milk and water becomes 2 : 1. How much milk was added as a percentage of initial mixture?

• A. 75
• B. 60
• C. 80
• D. 50

Answer 1

Answer:

C. 80

Let quantity of total mixture = k Quantity of milk = 2k/5 and Quantity of water in it = k - 2k/5 = 3k/5 New ratio = 2 : 1 Let quantity of milk to be added further be x litres milk : water = (2k/5 + x) / (3k/5) = (2k/5 + x) / (3k/5) = 2/1 x = 4k/5 Quantity milk that was added as a percentage of initial mixture = (x/k) × 100 = 80%