Mary is 19 years old. she drinks the recommended intake of 2.2 liters of water and other beverages a day. about how many cups is this equivalent to?

We will consider that the average volume of a cup is 200 ml, that is 0,2 liters. That means 1 liter of liquid in cups is: 1 liter * 0.2 cup/liter = 5 cups Then the equivalent of recommended liquid in number of cups is: 2.2 litres * 5 cup / liter = 11 cups of 200 ml each.