A mixture of 125 gallons of wine and water contains 20% water. How much water must be added to the mixture in order to increase the percentage of water to 25% of the new mixture?
Options:
A) 10 glas B) 8.5 gals C) 8 gals D) 6.66 gals E) 8.33 gals
In 125 gallons of the solution there are 0.2∗125=250 gallons of water. We want to add ww gallons of water to 125 gallons of solution so that 25+w gallons of water to be 25% of new solution:   25+w=0.25(125+w) --&gt; w=25/3≈8.33   Answer: 8.33 gals.
<result>E</result>
A mixture of 125 gallons of wine and water contains 20% water. How much water must be added to the mixture in order to increase the percentage of water to 25% of the new mixture?