Question

In a mixture of 13 litres, the ratio of milk and water is 3 : 2. if 3 liters of this mixture is replaced by 3 liters of milk, then what will be the ratio of milk and water in the newly formed mixture?

Answer 1

according to me in the ratio the milk is 0.3

Answer 2

Answer: The ratio of milk and water in the newly formed mixture is 9:4.

Step-by-step explanation:

Since we have given that

Quantity of mixture = 13 liters

Ratio of milk and water = 3:2

So, Quantity of milk in mixture is given by

$\dfrac{3}{5}\times 13=\dfrac{39}{5}$

Quantity of water in mixture is given by

$\dfrac{2}{5}\times 13=\dfrac{26}{5}$

Quantity of mixture is taken out = 3 liters

Quantity of milk is taken out is given by

$\dfrac{3}{5}\times 3=\dfrac{9}{5}$

Quantity of water is taken out is given by

$\dfrac{2}{5}\times 3=\dfrac{6}{5}$

Quantity of milk is replaced = 3 liters

So, Ratio of milk and water is given by

$\dfrac{39}{5}-\dfrac{9}{5}+3:\dfrac{26}{5}-\dfrac{6}{5}\\\\=\dfrac{30}{5}+3:\dfrac{20}{5}\\\\=9:4$

Hence, the ratio of milk and water in the newly formed mixture is 9:4.