Decimals and their operations

Question

A stainless steel vessel holds 5.4 litres of milk. One third of the milk is given to a favourite cat. After some water is added to the milk that remains, its volume becomes 1.25 as much as if it was before the water was added. If one third of this diluted milk is given to the three puppies outside, how much milk does the vessel now hold?

Answer 1

5.4 liters beginning

 

take away 1/3 ...

5.4 - 5.4/3 = 3.6 liters

 

Increased 1.25 times ...

3.6(1.25) = 4.5 liters

 

1/3 given to puppies

4.5 - 4.5/3 = 3 liters in vessel