Question

29.
A mixture contains milk and water in the ratio of 2 : 1. The quantity of the total mixtur
is 21 L. If more milk is added to the mixture, the new ratio becomes 4: 1. Find how
much milk was added.
​

Answer 1

Answer:

14 litre milk is added in mixture

Answer 2

Answer:

7 litres.

Step-by-step explanation:

Let the quantity of milk and water be 2x , X.

Total quantity of milk and water = 21 l

2x+X = 21

3x = 21

X = 21/3

X = 7.

Hence there are 14 l of milk and 7 l of water.

let us assume that y amount of milk is added to the mixture then the total amount of milk and water will be 4x , X.

Here X = 7 then total amount of milk and water = 4x+X= 5x = 5(7) = 35 l.

21+y = 35 l

y = 35 - 21

y = 7.

Therefore, 7 l of milk is added to the mixture.