Jackie has two solutions that are 2 percent sulfuric acid and 12 percent sulfuric acid by volume, respectively. If these solutions are mixed in appropriate quantities to produce 60 liters of a solution that is 10 percent sulfuric acid, approximately how many liters of the 2 percent solution will be required?
Choose the correct option:	A) 18	B) 12	C) 24	D) 36	E) 42
let a=amount of 2% acid and b= amount of 12% acid.   Now, The equation translates to,   0.02a + .12b = .1(a+b)   but a+b= 60   therefore .02a + .12b = .1(60)   =&gt; 2a + 12b = 600   but b=60-a   therefore   2a+ 12(60-a) = 600   =&gt; 10a = 120   hence a = 12.   Answer : 12
<result>B</result>
Jackie has two solutions that are 2 percent sulfuric acid and 12 percent sulfuric acid by volume, respectively. If these solutions are mixed in appropriate quantities to produce 60 liters of a solution that is 10 percent sulfuric acid, approximately how many liters of the 2 percent solution will be required?