Students are provided their bill for the next term for review, then routed to different tables for questions to be answered before finally paying their tuition at E. The numbers in parentheses are the time in minutes for each step of the process. Unless otherwise noted, each stage can handle 1 student at a time. The numbers in parentheses are the time in minutes for each step of the process .

QUESTION : Suppose that 75 % of students are routed to task Cand 25 % to D, and queues /lines are permitted anywhere in the process. You could hire one additional worker for any single task ( doubling throughput capacity at that task ). Assigning the new worker to which task would have the greatest impact on the throughput for the entire process (i.e. , the rate at which students exist task E).

Options- A,B,C,D, or E

(6) E (2) B (5) (4) D