Problem Statement

Question 7 A company has 3 telephone lines, the manager's, the accountant's and the receptionist's. At any given time on a normal day, the manager's phone is busy 60% of the time, the accountant's 70% of the time, and the receptionist's 90% of the time. If a customer picks a number of the company at random and dials, the probability that his call is immediately connected is Pick ONE option 01-May Jan-15 04-May Apr-15