1.  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? 

Answer: Option B Explanation: Answer: Option B Explanation: Let the cost of 1 litre milk be Re. 1
By the rule of alligation, we have:
