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May 2, 2011 was a
Monday
How to solve:
May 2, 2011
1
Century anchor
2000s
→
Tuesday (2)
Practice →
2
Divide by 12
11 ÷ 12
→
0
Practice →
3
Remainder of 12
11 % 12
→
11
Practice →
4
Divide remainder by 4
11 ÷ 4
→
2
Practice →
5
Year's doomsday
(2 + 0 + 11 + 2) % 7
→
1 → Monday
Practice →
6
Month doomsday
May
→
9th
Practice →
7
Distance
2 − 9
→
-7
Practice →
8
Final answer
(1 + -7) % 7
→
1 → Monday
Practice the Doomsday algorithm →