A company will be able to obtain a quantity discount on component parts for its three products, X1,X2, and X3, if it produces beyond certain limits. To get the X1 discount, it must produce more than 50 units of product X1. It must produce more than 60 units of X2 for the X2 discount and 70 units of X3 for the X3 discount. How many binary variables are required in the formulation of this problem? A company will be able to obtain a quantity discount on component parts for its three products, X1,X2, and X3, if it produces beyond certain limits. To get the X1 discount, it must produce more than 50 units of product X1. It must produce more than 60 units of X2 for the X2 discount and 70 units of X3 for the X3 discount. How many binary variables are required in the formulation of this