Two vessels A and B contain spirit and water in the ratio 5 : 2 and 7 : 6 respectively. Find the ratio in which these mixtures be mixed to obtain a new mixture in vessel C containing spirit and water in the ratio 8 : 5 ? Choose one
A) 3: 4
B) 4 : 3
C) 9 : 7
D) 7 : 9
E) 8 : 1
Explanation:   Let Cost Price(CP) of 1 litre spirit be Rs.1   Quantity of spirit in 1 litre mixture from vessel A =5/7   Cost Price(CP) of 1 litre mixture from vessel A = Rs. =5/7   Quantity of spirit in 1 litre mixture from vessel B =7/13   Cost Price(CP) of 1 litre mixture from vessel B =Rs. =7/13   Quantity of spirit to be obtained in 1 litre mixture from vessel C =8/13   Cost Price(CP) of 1 litre mixture from vessel C(Mean Price) = Rs. =8/13   =&gt; Mixture from Vessel A : Mixture from Vessel B   =1/13:9/91 =7:9   Answer IS 7 : 9
<result>D</result>
Two vessels A and B contain spirit and water in the ratio 5 : 2 and 7 : 6 respectively. Find the ratio in which these mixtures be mixed to obtain a new mixture in vessel C containing spirit and water in the ratio 8 : 5 ?