15 litres of mixture contains 20% alcohol and the rest water. If 3litres of water be mixed with it, the percentage of alcohol in the new mixture would be?
Choose the correct choice from the following answers
A) 16.67%	B) 23%	C) 18.3%	D) 19.75%	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+3= 
<gadget id="calculator">15+3</gadget>
<output>18</output>
18 litres   Quantity of alcohol in it= 3litres   Percentage of alcohol in new mix. = 3*100/18 = 50/3= 16.67%   16.67%nswer is 16.67%
<result>A</result>
15 litres of mixture contains 20% alcohol and the rest water. If 3litres of water be mixed with it, the percentage of alcohol in the new mixture would be?