In what ratio must water be mixed with milk to gain 16(2/3)% on selling the mixture at cost price?  Choose the correct choice from the following answers:
A) 1 : 6 B) 6 : 1 C) 2 : 3 D) 4 : 3 E) 3 : 2
Explanation:   Let C.P. of 1 litre milk be Re. 1.   S.P. of 1 litre of mixture = Re.1, Gain =	50/3 %   C.P. of 1 litre of mixture =(100 x	3/350 x 1)=6/7   By the rule of alligation, we have:   Ratio of water and milk =	1/7:6/7=1:6.   1 : 6NSWER IS 1 : 6
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In what ratio must water be mixed with milk to gain 16(2/3)% on selling the mixture at cost price?