15 litres of mixture contains 25% 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 choices: A) 20.83% B) 23% C) 18.3% D) 19.75% E) 21.23%
Alcohol in the 15litres of mix. = 25% of 15litres = (25*15/100)= 
<gadget id="calculator">(25*15/100)</gadget>
<output>15/4 = around 3.75</output>
3.75litres   water in it= 15-3.75= 
<gadget id="calculator">15-3.75</gadget>
<output>11.25</output>
11.25litres   new quantity of mix.= 15+3= 
<gadget id="calculator">15+3</gadget>
<output>18</output>
18 litres   Quantity of alcohol in it= 3.75litres   Percentage of alcohol in new mix. = 3.75*100/18 = 20.83%   20.83%nswer is 20.83%
<result>A</result>
15 litres of mixture contains 25% alcohol and the rest water. If 3litres of water be mixed with it, the percentage of alcohol in the new mixture would be?