Evaluating proposals objectively according to their merits helps to avoid reactive devaluation

A, B, C, D are joint tenants to Section 24 in a standard township. D deeds her interest to E:

a. E is a joint tenant with A, B, C b. E acquired 160 acres c. E owns a 1/4 interest in 640 acres d. E owns nothing because D cannot deed her interest as a joint tenant

A single-phase waiting-line system meets the assumptions of constant service time or M/D/1. Units arrive at this system every 12 minutes on average. Service takes a constant 8 minutes. What is the average number in the system Ls in units?

A) 2.25 B) 2.5 C) 3.0 D) 1.33 E) 5.0