A milkman purchases the milk at Rs. x per litre and sells it at Rs. 2x per litre still he mixes 2 litres water with every 6 litres of pure milk. What is the profit percentage?
Choose the most appropriate option
A) 116%
B) 166.66%
C) 60%
D) 100%
E) 150%
Explanation:   Let the cost price of 1 litre pure milk be Re.1, then   {6 litres(milk)-&gt;cp=Rs.6, 2 litres(water)-&gt;cp=Rs.0}-&gt;cp=Rs.6 only   and 8 litre mixture -&gt;SP -&gt; 8 x 2 = Rs.16   Profit %= [16/6 -6]x100=100/6=166.66%   ANSWER IS 166.66%
<result>B</result>
A milkman purchases the milk at Rs. x per litre and sells it at Rs. 2x per litre still he mixes 2 litres water with every 6 litres of pure milk. What is the profit percentage?