SMO 2021 Open Questions
SMO 2021 (Open Section) Answers
1. 1741
2. 99999
3. 4290
4. 7
5. 1395
6. 2020
7. 16
8. 169
9. 98
10. 6
11. 6
12. 89
13. 2
14. 2
15. 1348
16. 10
17. 101 (or 312 if the 8 cards are flipped as a stack of 8)
18. 88
19. 65
20. 25
21. 108
22. 2021
23. 75
24. 6
25. 5
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I get 1348 for Q15
ReplyDeleteWill 8 get me bronze?
ReplyDeleteIsn't Q17 101?
ReplyDeleteI think it is 202? Cause 101 will get all blue?
DeleteI also got 101 for Q17
ReplyDeleteAfter 101 operations, each of the 101 cards will have been flipped 8 times. 8 is even, so all of them are red.
ReplyDeletePlease correct me if I am wrong, but I got 3 instead of 2 for 13. I got the following numbers: 43^42x47^46, 43^46x47^42 and 2021^2020.
ReplyDeleteThank you :)
the last one has 2021^2 factors
ReplyDelete2021^2020 doesn’t have 2021 divisors
ReplyDeleteI tested with a Python program, the answer for Q17 is definitely 101. I am sure about that.
ReplyDeleteHAHAHA I just tested with a Python program too, same
ReplyDeleteOhh! Thank you for your explanations! Sorry that was a brain fart on my part
ReplyDeletewhat r your predictions for cutoffs
ReplyDeleteWill 12 get me a silver?
ReplyDeleteCan 6 get HM?
ReplyDelete12 is definitely a silver
ReplyDeleteis this year's paper easier than past years?
ReplyDeleteCan 5 get me hm?
ReplyDelete^^ same question
Deletehow abt 11?
ReplyDeletecan 10 get silver?
ReplyDeleteThis comment has been removed by the author.
ReplyDeletewait why cant q17 be 312. i assume he takes the 8 cards as a stack
ReplyDeleteThis paper is deinitely more difficult than 2020
ReplyDeleteAh Beng and Ah Meng
ReplyDeletethoughts on the cutoff?
ReplyDeleteThis is definitely harder than smo 2020. I think there might be a drop of 1 mark from last year cutoff for each award
ReplyDeleteWhat were the cutoffs for the awards last year? Also do I have a chance of getting silver with an 11?
ReplyDeletemy prediction:
ReplyDeleteGold: 15
Silver: 10
Bronze: 7
HM: 6
Not possible for bronze and hm to differ by 1 only
DeleteWhat can a 14 get me?
ReplyDeletegold or silver. wish you all the best for gold.
Deletemaybe
ReplyDeleteGold: 15
Silver: 10
Bronze: 7
HM: 5
Will bronze drop to 6?
ReplyDeletecan get silver with 9?
ReplyDeletewhat will 25 get me
ReplyDeleteI only got 26 questions correct, very sad now :(
ReplyDeleteAshish, 25 questions will get you #1 ranking
ReplyDeletewhat will 3 get me
ReplyDeleteWhat will I get with 17/25?
ReplyDeleteoh sorry 16/25
ReplyDelete16/25 is most likely a gold
ReplyDeleteDid you guys think this paper was easier or harder than past years?
ReplyDeletei feel it is easier
ReplyDeletenot sure tho
ReplyDeleteAny information on the cutoff point?
ReplyDeleteIs cut-off for gold 14/25?
ReplyDelete