Answer:
11.25 cups of water is needed to cook 5 cups of Beans.
Step-by-step explanation:
Given:
The amount of water required varies directly with the cups of beans.
2 cups of beans require 4.5 cups of water.
we need to find how many cups of water are needed to prepare 5 cups of beans.
4.5 cups of water =2 cups of bean
Number of cups of water = 5 cups of bean.
Now Using Unitary method for solving above we get,
Number of cups of water required = 
Hence 11.25 cups of water is required to prepare 5 cups of beans.