15 litres of mixture contains 20% alcohol and the rest water. If 2litres of water be mixed with it, the percentage of alcohol in the new mixture would be?	Pick:	A) 16.67%	B) 23%	C) 18.3%	D) 17.64%	E) 21.23%
Alcohol in the 15litres of mix. = 20% of 15litres = (20*15/100)= 
<gadget id="calculator">(20*15/100)</gadget>
<output>3</output>
3litres   water in it= 15-3= 
<gadget id="calculator">15-3</gadget>
<output>12</output>
12litres   new quantity of mix.= 15+2= 
<gadget id="calculator">15+2</gadget>
<output>17</output>
17 litres   Quantity of alcohol in it= 3litres   Percentage of alcohol in new mix. = 3*100/17 = 17.64%   Answer is 17.64%
<result>D</result>
15 litres of mixture contains 20% alcohol and the rest water. If 2litres of water be mixed with it, the percentage of alcohol in the new mixture would be?