Question

20 litre of mixture contains milk and water in the ratio 5:3 if 4 lit of this mixture is replaced by 4 lit of milk the ratio of mil to water in the new mixture would be​

Answer 1

Answer:

7: 3

Step-by-step explanation:

Given:

Milk : Water = 5 : 3

4 litres of mixture are removed:

Mixture left = 20 - 4 = 16 litres

Find the amount of Milk and Water now:

Milk : Water = 5 : 3

8 units = 16 litres of mixture

1 unit = 16 ÷ 8 = 2 litres

Milk : Water = 5x2 : 3x2

Milk : Water = 10 litres : 6 litres

4 litres of milk is added:

Milk : Water = 10+4 litres : 6 litres

Milk : Water = 14 litres : 6 litres

New Ratio:

Milk : Water = 14 : 6

Simplify by dividing by 2:

Milk : Water = 7 : 3