Question

7.
In a mixture of 126 kg of milk and water,
milk and water are in the ratio 5 : 2. How
much water must be added to the mixture to
make this ratio 3 : 2 ?​

Answer 1

Answer:

Weight of the mixture of milk and water is 126 kg.

Milk and water are in ratio 5:2

Let weight of milk in the mixture is 5x and water is 2x

Now,

5x+2x=126

7x=126

x=18

So, weight of milk in the mixture is 5x=90

weight of water in the mixture is 2x=36

Let y kg of water is added to the mixture to make the ratio of milk and water 3:2

Now,

36+y

90

=

2

3

108+3y=180

3y=72

y=24

Answer 2

Answer:

5x+2x=126

7x=126

x=18

milk ratio=90kg

water ratio=37kg