In a mixture of milk and water there is only 26 water After replacing the mixture with 7 liters of p......

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 mixture is:

    Milk             Water 

    74%             26%        (initially) 

    76%             24%        ( after replacement)

Left amount = Initial amount (1−replaced amount /total amount)

24  = 26(1−7 /k)

= k = 91 ltrs

Hence, option 2 is the correct answer.

By: Amit Kumar