Five tasks P, Q, R, S, and T need to be completed. Task P must be done before Q and R. Task S must be done before T but after Q. What is the correct sequence of tasks?
Five tasks, A, B, C, D, and E, need to be completed. A must be done before B, C must be done before D, and B must be done before E. What is the correct order of tasks?
Five books A, B, C, D, and E are arranged on a shelf. A is to the left of B, but to the right of C. D is to the right of E. What is the correct order of the books from left to right?
Four friends, A, B, C, and D, attended a seminar on different days. A attended before B but after C. D attended on the last day. What is the correct sequence of attendance?
A, B, C, D, and E are five friends who are going to a party. A goes before B but after C. D goes before E but after B. What is the correct order of arrival?