Solved IB ACIO Question
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Q · Classification / Odd One Outmedium · 45s
On which day of the week does December 31, 2025, fall, if January 1, 2025, was a Wednesday?
TopicClassification / Odd One Out
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.25
Test Duration30 min
Step-by-Step Solution
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Every step explained - no skipped algebra.
Jan 1, 2025, is Wednesday. 2025 has 365 days. 365 mod 7 = 1. Wednesday + 1 day = Thursday.
Final Answer: Option C - Thursday