Yasir wants to make the same number of batches of bran muffins as blueberry muffins. The bran muffins require 1 ½ cups of flour per batch. The blueberry muffins use 2 ½ cups of flour per batch. He has a ten pound bag of flour, which is 22 1/2 cups. How many full batches of each type of muffin will he be able to make?​