A 10 Liter mixture of milk and water contains 30 percent water. Two liters of this mixture is taken away. How many liters of water should now be added so that the amount of milk in the mixture is double that of water?  Pick one:
A) 3.3  B) 3.4  C) 0.4  D) 4.9  E) 3.87
Explanation:   Two liters were taken away So we have only 8 liters of mixture.   Amount of milk in 8 liters of mixture = 8 × 70% = 5.6 liters   Amount of water in 8 lit of mix = 8 - 5.6= 
<gadget id="calculator">8 - 5.6</gadget>
<output>2.4</output>
2.4 liters.   Half of milk i.e half of 5.6= 2.8 liters.   We need   (2.8 - 2.4)= 
<gadget id="calculator">  (2.8 - 2.4)</gadget>
<output>0.4</output>
0.4 lit   Answer: 0.4
<result>C</result>
A 10 Liter mixture of milk and water contains 30 percent water. Two liters of this mixture is taken away. How many liters of water should now be added so that the amount of milk in the mixture is double that of water?