What was the last day of the year 1889?
Rule:
Ordinary year = 1 odd day
Leap year = 2 odd days
1 January 1900 = Monday (standard reference date)
Step 1: Find 1 January 1889
From 1889 to 1900:
Total years = 11
Leap years = 1892, 1896 → 2
Ordinary years = 9
Odd days:
9×1+2×2=13
13 odd days →
6 odd daysGoing 6 days backward from Monday:
Monday → Sunday → Saturday → Friday → Thursday → Wednesday → Tuesday
So, 1 January 1889 = Tuesday.
Step 2: Find the last day
1889 is an ordinary year:
365=52 weeks+1 day
The last day is 364 days after 1 January:
364=52×7
So the day remains Tuesday.
Correct Answer: B — Tuesday