In a mixture, milk and water are in ratio of 7 : 9. Some milk is added to the mixture because of which ratio of milk and water becomes 11 : 9. How much milk was added as a percentage of initial mixture?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 25%.
Given that, initial ratio of milk and water = 7 : 9
Final ratio of milk and water = 11 : 9
Let the amount of milk added to the mixture be x.
According to the given question,
⇒ 7 + x = 11
⇒ x = 4
Total initial mixture = 7 + 9 = 16
Percentage of milk added = = 25%
Hence the required answer is 25%.