A 60 liter mixture of milk and water contains 10% water . how much water must be added to make water 20% in the mixture

Question

A vessel contains 20 litres of a mixture of milk and water containing 60% milk. 5 litres of pure milk is added to it. Find the percentage of milk in the new mixture.

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Answer 1

Hi

The mixture has 10% water, so the milk would be 90% of 60 litres.

Milk = 90/100 * 60 = 54 litres

therefore, water = 60 ? 54 = 6 litres

Let water to be added = x litres

Now, 6+x/60+x * 100 = 20

6+x/60+x = 1/5

30 + 5x = 60 + x

30-60 = x ? 5x

-30 = -4x

x = 30/4 = 7.5 litres

Hopefully this information is helpful

Thankyou.

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A 60 liter mixture of milk and water contains 10% water . how much water must be added to make water 20% in the mixture

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