Question

In 30 litres of milk and water water is only 20%. how many litres of water should be added to it to increase the percentage of water to 60%

Answer 1

Hey.

Here is the answer.

Total mixture volume is 30 L.

as there is 20% water
so, volume of water = 20% of 30 = 6 L

and volume of milk = 80% of 30 = 24 L

As, water is added to increase it's volume to 60%

so volume of milk will remain fixed.(24L)

As, new volume of water is 60% so new volume of milk will be 40%.

Let new total volume be x L.

So, 40% of x = 24 L

or, 0.40 of x = 24 L

so, x = 24/0.40 = 60 L

So, volume of water will be 60- 24 L =36L

Hence, water added 36-6 =30 L

30 L of water must be added to increase the percentage of water to 60%.

Thanks.