PrepTest 23, Section 1, Question 21
Five candidates for mayor�Q, R, S, T, and U�will each speak exactly once at each of three town meetings�meetings 1, 2, and 3. At each meeting, each candidate will speak in one of five consecutive time slots. No two candidates will speak in the same time slot as each other at any meeting. The order in which the candidates will speak will meet the following conditions:
Five candidates for mayor�Q, R, S, T, and U�will each speak exactly once at each of three town meetings�meetings 1, 2, and 3. At each meeting, each candidate will speak in one of five consecutive time slots. No two candidates will speak in the same time slot as each other at any meeting. The order in which the candidates will speak will meet the following conditions:
Five candidates for mayor�Q, R, S, T, and U�will each speak exactly once at each of three town meetings�meetings 1, 2, and 3. At each meeting, each candidate will speak in one of five consecutive time slots. No two candidates will speak in the same time slot as each other at any meeting. The order in which the candidates will speak will meet the following conditions:
Five candidates for mayor�Q, R, S, T, and U�will each speak exactly once at each of three town meetings�meetings 1, 2, and 3. At each meeting, each candidate will speak in one of five consecutive time slots. No two candidates will speak in the same time slot as each other at any meeting. The order in which the candidates will speak will meet the following conditions:
Each candidate must speak either first or second at at least one of the meetings.
Any candidate who speaks fifth at any of the meetings must speak first at at least one of the other meetings.
No candidate can speak fourth at more than one of the meetings.
If the order in which the candidates speak at meeting 1 is R, U, S, T, Q, and the order in which they speak at meeting 2 is Q, R, U, S, T, which one of the following could be true of meeting 3?
Q speaks first.
R speaks third.
S speaks first.
T speaks second.
U speaks fifth.
Explanations
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