Jane is making strawberry shakes for her friends. From a container with 50 pints of pure milk, she takes out 5 pints of milk and adds the same quantity of water to the container.
Later, some more of Jane's friends come over and ask for more shakes. So, Jane takes out 10 pints of the mixture.
Find the quantity of water in pint(s) in the mixture taken out to make strawberry shakes.