Two vessels P and Q contain 62.5% and 87.5% of alcohol respectively. If 4 litres from vessel P is mixed with 8 litres from vessel Q, the ratio of alcohol and water in the resulting mixture is?	Choices:
A) 19:1
B) 19:4
C) 19:8
D) 38:10
E) 38:2
Quantity of alcohol in vessel P = 62.5/100 * 4 = 5/2 litres   Quantity of alcohol in vessel Q = 87.5/100 * 8= 
<gadget id="calculator">87.5/100 * 8</gadget>
<output>7</output>
7/1 litres   Quantity of alcohol in the mixture formed= 5/2 + 7/1 = 19/2= 
<gadget id="calculator">19/2</gadget>
<output>19/2 = around 9.5</output>
9.50 litres   As 12 litres of mixture is formed, ratio of alcohol and water in the mixture formed= 9.50 : 2.50 = 38:10.   Answer: 38:10
<result>D</result>
Two vessels P and Q contain 62.5% and 87.5% of alcohol respectively. If 4 litres from vessel P is mixed with 8 litres from vessel Q, the ratio of alcohol and water in the resulting mixture is?