A PAPER MILL PRODUCES TWO GRADES OF PAPER VIZ., X AND Y. BECAUSE OF RAW
MATERIAL RESTRICTIONS, IT CANNOT PRODUCE MORE THAN 400 TONS OF GRADE X PAPER
AND 300 TONS OF GRADE Y PAPER IN A WEEK. THERE ARE 160 PRODUCTION HOURS IN A
WEEK. IT REQUIRES 0.20 AND 0.40 HOURS TO PRODUCE A TON OF GRADE X AND Y PAPERS.
THE MILL EARNS A PROFIT OF RS. 200 AND RS. 500 PER TON OF GRADE X AND Y PAPER
RESPECTIVELY. FORMULATE THIS AS A LINEAR PROGRAMMING PROBLEM.