A milk vendor has 2 cans of milk. The first contains 25% water and the rest milk. The second contains 50% water. How much milk should he mix from each of the containers so as to get 12 litres of milk such that the ratio of water to milk is 3 : 5? Choose the correct choice from the following answers.
A) 5litres, 7 litres  B) 7litres, 4 litres  C) 6litres, 6 litres  D) 4litres, 8 litres  E) 8litres, 10 litres
Explanation:   Solution 1   Let x and (12âˆ’x) litres of milk be mixed from the first and second container respectively.   Amount of milk in x litres of the the first container =.75x   Amount of water in x litres of the the first container =.25x   Amount of milk in (12âˆ’xlitres of the the second container =5(12âˆ’x)   Amount of water in (12âˆ’x)litres of the the second container =.5(12âˆ’x)   Ratio of water to milk   Since x=6,12âˆ’x=12âˆ’6=6   Hence 6 and 6 litres of milk should mixed from the first and second container respectively.   Answer IS 6litres, 6 litres
<result>C</result>
A milk vendor has 2 cans of milk. The first contains 25% water and the rest milk. The second contains 50% water. How much milk should he mix from each of the containers so as to get 12 litres of milk such that the ratio of water to milk is 3 : 5?