Three bottles contain equal mixtures of spirit and water in the ratio 6 : 1, 5 : 2 and 3 : 1 respectively. If all the solutions are mixed together, the ratio of spirit to water in the final mixture will be Choose the correct choice from the following options:
A) 64 : 65
B) 65 : 64
C) 19 : 65
D) 65 : 19
E) none of these
Given that all bottles contain equal amount of mixture say V.   So in the first vessel -&gt; water : spirit =1/7 : 6/7   In the second bottle -&gt; 2/7 : 5/7   In the third bottle -&gt; l/4:3/4.   Hence, the final ratio is=((6/7) + (5/7) + (3/4)) / ((1/7) + (2/7) + (1/4))   = 65/19   ANSWER:65 : 19
<result>D</result>
Three bottles contain equal mixtures of spirit and water in the ratio 6 : 1, 5 : 2 and 3 : 1 respectively. If all the solutions are mixed together, the ratio of spirit to water in the final mixture will be