Question

If 729 litres if milk and water ratio of milk to water is 7:2 to get a new mixture containg

Answer 1

Answer:

Step-by-step explanation:

Quantity of milk in 729 litre of mixture

= 7*729/9 = 567 litre

Quantity of water

= 729-567 = 162 litre.

Let x litre of water be added to become ratio 7:3.

Or, 7/3 = 567/(162+x)

Or, 162*7 +7x = 567*3

Or, 7x = 1701-1134 = 567

Or, x = 567/7 = 81 litre water is to be added.

Therefore the answer is 81 liters