Question

There are 27 litres pure milk in a container . One - third of milk is replaced by water in the container , Again one - third of mixture is extracted and equal amount of water is added . What is the ratio of milk to water in the new mixture ?​

Answer 1

Answer:

ANSWER

Initially, Milk = 81 litres and waterr = 0 litre Afte 1st operation,

Milk = [81−

3

1

×81]litres=(81−27)litres=54 litres

Water = [0+

3

1

×54]litres = (54−18) litres =36 litres

Water= [27−

3

1

×27]litres+[

3

1

×54+

3

1

×27]litres = (27−9) litres + (18+9) litres =45litres

∴ Required ratio of milk and water in the new mixture =36:45=4:5