Solved IB ACIO Question
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Q · Classification / Odd One Outmedium · 45s
What day of the week will August 15, 2025, fall on if January 1, 2025, is a Wednesday?
TopicClassification / Odd One Out
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.25
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained - no skipped algebra.
January 1, 2025, is Wednesday. Days from Jan 1 to Aug 15: 31 (Jan) + 28 (Feb) + 31 (Mar) + 30 (Apr) + 31 (May) + 30 (Jun) + 31 (Jul) + 15 (Aug) = 227 days. 227 mod 7 = 3. Wednesday + 3 days = Saturday.
Final Answer: Option B - Saturday