In what ratio P:Q should the Mixture P of milk and water in the ratio of 6:1 be mixed with another Mixture Q of milk and water in the ratio 3:4 so that the resultant mixture contains equal quantities of milk and water?  Select: A) 1:3 B) 1:4 C) 1:5 D) 2:5 E) 3:4
(6/7)*P +(3/7)*Q = (1/7)*P+(4/7)*Q   5P=Q   P/Q = 1/5   The answer is 1:5.
<result>C</result>
In what ratio P:Q should the Mixture P of milk and water in the ratio of 6:1 be mixed with another Mixture Q of milk and water in the ratio 3:4 so that the resultant mixture contains equal quantities of milk and water?