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?  Pick one
A) 4 litres, 8 litres
B) 6 litres, 6 litres
C) 5 litres, 7 litres
D) 7 litres, 4 litres
E) None
Let the cost of 1 litre milk be Re. 1   Milk in 1 litre mix. in 1st can = 3/4 litre, C.P. of 1 litre mix. in 1st can Re. 3/4   Milk in 1 litre mix. in 2nd can = 1/2 litre, C.P. of 1 litre mix. in 2nd can Re. 1/2   Milk in 1 litre of final mix. = 5/8 litre, mean price = Re. 5/8.   Ratio of two mixtures = 1/8 : 1/8 = 1:1.   So, quantity of mixture taken from each can = (1/2 X 12) = 6 litres.   Answer 6 litres, 6 litres
<result>B</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?