A 15 lt mixture contains water with 20% of alcohol.If 5 more lts of water added to the mixture what is the percentage of alcohol?  Choices:	A) 10%	B) 15%	C) 20%	D) 25%	E) 30%
Initially the mixture contains 20% of 15=15*(20/100)= 
<gadget id="calculator">15*(20/100)</gadget>
<output>3</output>
3 lts of alcohol   after mixing another 5 lts of water...   the total liquid is 20 lts..   so alcohol percentage=(3/20)*100= 
<gadget id="calculator">(3/20)*100</gadget>
<output>15</output>
15%   ANSWER:15%
<result>B</result>
A 15 lt mixture contains water with 20% of alcohol.If 5 more lts of water added to the mixture what is the percentage of alcohol?