Two vessels P and Q contain 62.5% and 87.5% of alcohol respectively. If 8 litres from vessel P is mixed with 4 litres from vessel Q, the ratio of alcohol and water in the resulting mixture is?  Select:
A) 17:7	B) 18:8	C) 19:9	D) 19:5	E) 19:4
Quantity of alcohol in vessel P = 62.5/100 * 8= 
<gadget id="calculator">62.5/100 * 8</gadget>
<output>5</output>
5 litres   Quantity of alcohol in vessel Q= 87.5/100 * 4 = 7/2 litres   Quantity of alcohol in the mixture formed = 5 + 7/2 = 17/2= 
<gadget id="calculator">17/2</gadget>
<output>17/2 = around 8.5</output>
8.5 litres   As 12 litres of mixture is formed, ratio of alcohol and water in the mixture formed= 8.5 : 3.5 = 17 : 7.   17:7nswer:17:7
<result>A</result>
Two vessels P and Q contain 62.5% and 87.5% of alcohol respectively. If 8 litres from vessel P is mixed with 4 litres from vessel Q, the ratio of alcohol and water in the resulting mixture is?