In a can, there is a mixture of milk and water in the ratio 4 : 5. If it is filled with an additional 4 litres of milk the can would be full and ratio of milk and water would become 6 : 5. Find the capacity of the can?
Choose the correct choice:  A) 40  B) 44  C) 48  D) 22  E) None of these
Let the capacity of the can be T litres.   Quantity of milk in the mixture before adding milk = 4/9 (T - 4)   After adding milk, quantity of milk in the mixture = 6/11 T.   6T/11 - 4 = 4/9(T - 4)   10T = 396 - 176 =&gt; T = 22.   ANSWER:22
<result>D</result>
In a can, there is a mixture of milk and water in the ratio 4 : 5. If it is filled with an additional 4 litres of milk the can would be full and ratio of milk and water would become 6 : 5. Find the capacity of the can?