In a mixture 60 litres, the ratio of milk and water 2 : 1. If this ratio is to be 1 : 2, then the quanity of water to be further added is:	Choose the correct choice from the following options:
A) 20 liters  B) 30 liters  C) 40 liters  D) 60 liters  E) 70 liters
Quantity of milk = 60 x	2	litres = 40 litres.   3   Quantity of water in it = (60- 40)= 
<gadget id="calculator">(60- 40)</gadget>
<output>20</output>
20 litres.   New ratio= 1 : 2   Let quantity of water to be added further be x litres.   Then, milk : water = 40 .   20 + x   Now, 40 =	1   20 + x	2   20 + x = 80   x = 60.   Quantity of water to be added = 60 litres   so the correct answer is option 60 liters)
<result>D</result>
In a mixture 60 litres, the ratio of milk and water 2 : 1. If this ratio is to be 1 : 2, then the quanity of water to be further added is: