How much water must be added to 10 gallons of 10% brine solution to decrease the concentration to 8%? Choose the correct choice from the following options:
A) 0—1.5 gal	B) 1.5—3 gal	C) 3—4.5 gal	D) 4.5—6 gal	E) 6+ 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= 8   =&gt;100 = 80 + 8x   =&gt; x= 20/8= 
<gadget id="calculator">20/8</gadget>
<output>5/2 = around 2.5</output>
2.5   Answer 1.5—3 gal
<result>B</result>
How much water must be added to 10 gallons of 10% brine solution to decrease the concentration to 8%?