How many gallons of water must be mixed with 1 gallon of a 15% salt solution To obtain a 10% salt solution	Choose the correct choice from the following choices
A) 5 B) 67 C) 1.0 D) 1.5 E) 2.00
Since we are adding pure water then the amount of salt in both solutions will be the same, so 0.15*1=0.1*(1+x) --&gt; x=0.5.   5nswer: 5.
<result>A</result>
How many gallons of water must be mixed with 1 gallon of a 15% salt solution To obtain a 10% salt solution