slolver in excel

Example : Maximization Problem with 3 Decision Variable A frim produces three A, B, and C each of which passes through three different departments fabrication , finishing ,packaging .Each unit of product A requires 3, 4 and 2 hours respectively, B requires 5, 4 and 4 hours respectively and C requires 2, 4 and 5 hours respectively in 3 department respectively. Every day 60 hours are available in fabrication department ,72 hours in finishing and 100 hours in packing department. If unit contribution of unit A is $5 .$10 for B and $8 for C