Two vessels P and Q contain 62.5% and 87.5% of alcohol respectively. If 3 litres from vessel P is mixed with 4 litres from vessel Q, the ratio of alcohol and water in the resulting mixture is?	Choices
A) 179:2
B) 178:3
C) 179:1
D) 179:54
E) 179:45
Quantity of alcohol in vessel P = 62.5/100 * 3 = 15/8 litres   Quantity of alcohol in vessel Q = 87.5/100 * 4 = 7/2 litres   Quantity of alcohol in the mixture formed = 15/8 + 7/2 = 43/8= 
<gadget id="calculator">43/8</gadget>
<output>43/8 = around 5.375</output>
5.375 litres   As 7 litres of mixture is formed, ratio of alcohol and water in the mixture formed= 5.375 : 1.625 = 179 : 54.   Answer:179:54
<result>D</result>
Two vessels P and Q contain 62.5% and 87.5% of alcohol respectively. If 3 litres from vessel P is mixed with 4 litres from vessel Q, the ratio of alcohol and water in the resulting mixture is?