How many liters of water must be added to 18 liters of milk and water containing 10% water to make it 70% water?	Choose the correct answer:  A) 28  B) 32  C) 36  D) 40  E) 44
By rule of alligation:   70% - 10% = 60%   100% - 70% 70  - 10= 
<gadget id="calculator">70  - 10</gadget>
<output>60</output>
60%   100% - 70% = 30%   Quantity of pure water : Quantity of the mixture  100  - 70= 
<gadget id="calculator"> 100  - 70</gadget>
<output>30</output>
30%   Quantity of pure water : Quantity of the mixture= 6 : 3   There are 18 liters of mixture, so we need to add 36 liters of pure water.   The answer is 36.
<result>C</result>
How many liters of water must be added to 18 liters of milk and water containing 10% water to make it 70% water?