Question

A 20 litter of milk contains 20% of water .Extra water is added to it to make it to 50% milk. The quantity of milk has to be added further to bring it back to 20% of water is​

Answer 1

Answer:

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Step-by-step explanation:

Answer 2

Answer:

48L milk required

Step-by-step explanation:

20% of 20L milk is water which means there 4 liter water and 16L milk.

After adding water, for the water to be 50% there should 16L of water.

So now we have a solution of 16L water and 16L milk.

Now we can calculate the amount of milk required for a solution which has 20% water by simply using percentage formula,

percentage = (Volume of water/Total Volume)×100

Total Volume = 16L milk + 16L water + X

20 = [16/(32+X)]×100

X being the amount of milk added to the solution