How much water must be added to 10 gallons of 10% brine solution to decrease the concentration to 3%?	Choose the most appropriate option:
A) 0—1.5 gal	B) 1.5—3 gal	C) 3—4.5 gal	D) 4.5—6 gal	E) 16+ gal
Let amount of water that must be added in gallons to dilute concentration of brine solution = x   Amount of brine already present = 10/100 * 10= 
<gadget id="calculator">10/100 * 10</gadget>
<output>1</output>
1 gallon   1/(10+x) *100= 3   =&gt;100 = 30 + 3x   =&gt; x= 70/3 = 23   Answer 16+ gal
<result>E</result>
How much water must be added to 10 gallons of 10% brine solution to decrease the concentration to 3%?