Problem 3 (2.4 pts) A hotel numbers its fare classes from higher to lower as 1,2,3 and 4 . The room prices for these classes are p1=$300,p2=$250,p3=$200,p4=$150. The demands for these fare classes are denoted by D1,D2,D3 and D4. These demands turn out to have uniform distributions with the following ranges: D1[0,10],D2[0,10],D3[0,10],D4[0,10]. a) (1.2 pts) Use EMSR-a heuristic to find the protection level y3 for classes {1,2,3} ? b) (1.2 pts) Use EMSR-a heuristic to find the protection level y2 for classes {1,2}