If a 10 lit. mixture contains milk and water in the ratio 2:1 then, how much more mixture should be added to change the ratio to 1:2 ?  Choices:	A) 10 liters of water	B) 15 liters of water	C) 10 liters of milk	D) 20 liters of water	E) 20 liters of milk
If you add the same mixture again,the ratio will still remain the same.   The question should be how much water to be added   In 10 litres, let quantity of milk = 2x and quantity of water = x   =&gt; 2x + x = 10   =&gt; x = 10/3 , 2x = 20/3   Let y litres of water be added to make the ratio 1:2   =&gt; (20/3) / (10/3 + y) = 1 / 2   =&gt; 40/3 = 10/3 + y   =&gt; y = 10 liters   Therefore,10 liters of water to be added.   10 liters of waterNSWER:10 liters of water
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If a 10 lit. mixture contains milk and water in the ratio 2:1 then, how much more mixture should be added to change the ratio to 1:2 ?