Question

Milk and water are mixed in the ratio of 7: 3 in 40 liters of milk. What is the percentage of pure milk when 10 liters of pure milk is added to the mixture? Remove.​

Answer 1

Answer:

hope this will help you.........

Answer 2

Answer :-

The percentage of pure milk when 10 litres [pure milk] is added to the mixture is 76%.

Step-by-step explanation :

To Find :-

The percentage of pure milk when 10 litres of pure milk is added to the mixture.

★ Solution:

Given that,

• The ratio of milk and water in 40 litres of milk = 7:3

Finding the capacity of milk and water :-

Assumption :

→ Milk = 7x

→ Water = 3x

∴ 7x + 3x = 40 . . . . [Given]

⇒ 7x + 3x = 40

⇒ 10x = 40

⇒ x = 40/10

⇒ x = 4

Now, The capacity :-

• 7x = 7*4 = 28 litres
• 3x = 3*4 = 12 litres.

Also given,

When 10 litres of milk is added to the mixture, The total capacity of milk and mixture will be :-

• Total litres of Milk :-

⇒ 28 litres + 10 litres

⇒ 38 litres

• Total capacity of mixture :-

⇒ 40 + 10

⇒ 50 litres.

Now, ⠀⠀⠀⠀⠀ A . T . Q,

The percentage of milk :-

⇒ 38/50 × 100

⇒ 38/5 × 10

⇒ 38 × 2

⇒ 76%

Hence, Percentage of milk is 76%.