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) 6 litres, 6 litres	B) 6 litres, 7 litres	C) 7 litres, 5 litres	D) 5 litres, 5 litres	E) None
Let the cost of 1 litre milk be Re. 1   Milk in 1 litre mix. in 1st can =	3	litre, C.P. of 1 litre mix. in 1st can Re.	3   4	4   Milk in 1 litre mix. in 2nd can =	1	litre, C.P. of 1 litre mix. in 2nd can Re.	1   2	2   Milk in 1 litre of final mix. =	5	litre, Mean price = Re.	5   8	8   By the rule of alligation, we have:   C.P. of 1 litre mixture in 1st can C.P. of 1 litre mixture in 2nd can   3   4   Mean Price   5   8   1   2   1   8   1   8   Ratio of two mixtures =	1	:	1	= 1 : 1.   8	8   So, quantity of mixture taken from each can = 1/2	x 12 = 6 litres   Option 6 litres, 6 litres
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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?