A chemist mixes one liter of pure water with x liters of a 60% salt solution, and the resulting mixture is a 15% salt solution. What is the value of x?  Select the correct option
A) 1/4	B) 1/3	C) 1/2	D) 1	E) 3
Concentration of salt in pure solution = 0   Concentration of salt in salt solution = 60%   Concentration of salt in the mixed solution = 15%   The pure solution and the salt solution is mixed in the ratio of --&gt; (60 - 15)/(15 - 0) = 3/1   1/x --  (60 - 15)/(15 - 0)= 
<gadget id="calculator">--  (60 - 15)/(15 - 0)</gadget>
<output>3</output>
3/1   1/x= 3/1   x = 1/3   Answer: 1/3
<result>B</result>
A chemist mixes one liter of pure water with x liters of a 60% salt solution, and the resulting mixture is a 15% salt solution. What is the value of x?