Milk and Coffee

A. Hannah has two cups, one with milk and the other with coffee. The amounts of milk and coffee are the same. Hannah transfers two teaspoons of milk into the cup with coffee, mixes, and then transfers two teaspoons from the cup of coffee into the milk. Currently, she has two cups each containing a mixture of coffee and milk. What is greater – the amount of milk in the cup of coffee or the amount of coffee in the cup of milk?

B. The same question, but this time Hannah adds milk to the coffee without mixing.