Question

If Marketing is scheduled for room 3 on Thursday and Research is scheduled for room 2 on Friday, then which of the following must be true?

• A. Graphics is scheduled for room 2 on Wednesday.\
• B. Graphics is scheduled for room 1 on Thursday.\
• C. Marketing is scheduled for room 1 on Wednesday.\
• D. Marketing is scheduled for room 2 on Wednesday.\
• E. Research is scheduled for room 2 on Thursday. \textbf

Hint:

Enumerate permutations for affected rooms; identify forced placements.

Answer 1

The Correct Option is A

Step 1: Given: M in room 3 Thu; R in room 2 Fri.
Step 2: Base rules: Each room has G, M, R once; R not in room 2 Thu.
Step 3: Possible assignments for room 2: W=G or M, but constraints force W=G for room 2 to satisfy uniqueness and no violations.
Step 4: Thus, G in room 2 Wed must be true.