In a mixture of milk and water, there is only 26% water. After replacing the mixture with 7 liters of pure milk, the percentage of milk in the mixture become 76%. The quantity of the mixture is:	Choose the correct choice from the following options: A) 65 liters B) 91 liters C) 38 liters D) 124 liters E) None of the above
Initially, the percentage of milk and water is 74% and 26%, respectively. After replacement, the percentage of mild and water is 76% and 24%, respectively.   Left amount = Initial amount (1 - replaced amount/total amount)   =&gt; 24=(1-7/k)   =&gt; 12/13 = (1-7/k)   =&gt; 1/13 = 7/k   =&gt; k = 91   Answer: 91 liters)
<result>B</result>
In a mixture of milk and water, there is only 26% water. After replacing the mixture with 7 liters of pure milk, the percentage of milk in the mixture become 76%. The quantity of the mixture is: