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