Reasoning Ability - Calendar Problems
If 1st January 1601 was Monday, what day was 1st January 2001?
If 1st January 1601 was Monday, what day was 1st January 2001?
easy Q11 of 15
Step-by-Step Solution
Step 1: Calculate span
From 1601 to 2001 = 400 years → 1 complete Gregorian cycle.Step 2: Apply 400-year rule
Every 400 years = 0 odd days.Step 3: Day shift
0 odd days → same weekday → Monday.Final Answer:
Monday → Option AQuick Check:
400-year cycle ⇒ same weekday ✅
Quick Trick: Every 400 years, the weekday repeats exactly.
Common Mistakes:
MISTAKES- Counting leap-year odd days manually instead of using the 400-year cycle property.
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