In a mixture, milk and water are in ratio of 1 : 4. 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 ?
Answer & explanation
Correct answer: option 1
Ratio of milk and water = 1 : 4
New ration after the addition of more Milk = 2 : 1,
Let x be the the milk added,
⇒ \(\frac{1+x}{4}\) = \(\frac{2}{1}\)
⇒ x = 7,
So, 7 litres of milk is added to the mixture,
The total mixture is = 1 + 4 = 5,
Percentage of milk added ,
\(\frac{7}{5}\) x 100 = 140%