A 12 lt solution is 33 1/3% acid. How much water must be added to get the solution having 20 % acid.
Select the correct option.
A) 8
B) 9
C) 10
D) 7
E) 5
A 12 lt solution is 33 1/3% acid.   means 4 ltr acid and 8 ltr water.   If x is final solution, then   4 ltr = x* 20/100   x=20 ltr   so water to be added = 20-12= 
<gadget id="calculator">20-12</gadget>
<output>8</output>
8 ltr   8NSWER:8
<result>A</result>
A 12 lt solution is 33 1/3% acid. How much water must be added to get the solution having 20 % acid.