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?
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?
Four friends, A, B, C, and D, are standing in a line. A is to the left of B but to the right of C. D is to the right of B. What is the correct order from left to right?
Five friends, P, Q, R, S, and T, are standing in a line. P is to the right of Q but to the left of R. S is to the left of T. What is the correct order from left to right?