How many litres of water must be added to 16 liters of milk and water contains 10% water to make
it 20% water in it	Choose the correct answer:
A) 4 litre
B) 2 litre
C) 1 litre
D) 3 litre
E) None of these
Explanation :   2 litrey the rule of alligation, we have   % Concentration of water   in pure water : 100 % Concentration of water   in the given mixture : 10   Mean % concentration   20   20 - 10= 
<gadget id="calculator">20 - 10</gadget>
<output>10</output>
10 100 - 20= 80   =&gt; Quantity of water : Quantity of the mixture = 10 : 80 = 1 : 8   Here Quantity of the mixture = 16 litres   =&gt; Quantity of water : 16 = 1 : 8   Quantity of water = 16×18=2 litre   Answer : Option 2 litre
<result>B</result>
How many litres of water must be added to 16 liters of milk and water contains 10% water to make
it 20% water in it