Respuesta :
					                   The positions/jobs are different. One person can not take two jobs so the number of total candidates decreases by one for each position.. 
Manager = 15 candidates
Associate Manager = 14 candidates
Assistant Manaager = 13 candidates
15 × 14 × 13 = 2730 possible outcomes
					                
					                
					             Manager = 15 candidates
Associate Manager = 14 candidates
Assistant Manaager = 13 candidates
15 × 14 × 13 = 2730 possible outcomes
 
					                  