Question

In a mixture of 81 litres of milk to water is 5:4.If the ratio of milk to water is to be 1:2the amount of water that should be added is

Answer 1

the amount of water to be added is 54 k

Answer 2

The amount of water that should be added is 54

Step-by-step explanation:

Ratio of milk and water = 5:4

Let the ratio be x

Amount of milk = 5x

Amount of water = 4x

Amount of mixture = 81 liters

So$, 5x+4x=81$

$9x=81$

$x=\frac{81}{9}$

x=9

Amount of milk = 5x =5(9)=45 liters

Amount of water = 4x=4(9)=36 liters

We are supposed to find the amount of water that should be added to make ratio of milk to water is to be 1:2

$\frac{45}{36+x}=\frac{1}{2}$

90=36+x

54=x

Hence the amount of water that should be added is 54

#Learn more:

Milk and water are in the ratio of 3:2 in a mixture of 180 litre.how much water should be added so that the ratio of the milk and water becomes 2:3

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