Question

A 100 liters mixture of milk and water contains 10% water how much water must be added to make water 20% in mixture watee

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

The correct answer is 12.5 L

Step-by-step explanation:

Given :

Volume of mixture (V) = 100 L

The percentage of water = 10%

To be found out :

How much water must be added to make the mixture 20% of mixture.

Calculations :

Let x be the amount of water that has be to added. Then,

10+x = 20% of (100 + x)

$10 + x = \frac{20}{100} \times (100 + x)$

$10 + x = \frac{1}{5} \times (100 + x)$

$50 + 5x = 100 + x \\ 50 - 100 = x - 5x \\ - 50 = - 4x \\ 25 = 2x \\ x = \frac{25}{2} = 12.5$

Hence, 12.5 L is required to make it 20 % water of the mixture.

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