In a mixture, milk and water are in ratio of 1:4. Some milk is added to the mixture because this ratio of milk and water becomes 2:1. How much milk was added as a percentage of the initial mixture?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 140%.
Let x liters of milk be added to the mixture.
So, (1 + x)/4 = 2/1
⇒ 1 + x = 8
⇒ x = 8 - 1 = 7
Total mixture = 1 + 4 = 5
Required percentage = (7/5) × 100 = 140%
Hence, the percentage of milk added to the initial mixture is 140%.