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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47 comments:
I get 1348 for Q15
Will 8 get me bronze?
Isn't Q17 101?
I think it is 202? Cause 101 will get all blue?
I also got 101 for Q17
After 101 operations, each of the 101 cards will have been flipped 8 times. 8 is even, so all of them are red.
Please 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.
Thank you :)
the last one has 2021^2 factors
2021^2020 doesn’t have 2021 divisors
I tested with a Python program, the answer for Q17 is definitely 101. I am sure about that.
HAHAHA I just tested with a Python program too, same
Ohh! Thank you for your explanations! Sorry that was a brain fart on my part
what r your predictions for cutoffs
Will 12 get me a silver?
Can 6 get HM?
12 is definitely a silver
is this year's paper easier than past years?
Can 5 get me hm?
how abt 11?
can 10 get silver?
wait why cant q17 be 312. i assume he takes the 8 cards as a stack
This paper is deinitely more difficult than 2020
Ah Beng and Ah Meng
thoughts on the cutoff?
This is definitely harder than smo 2020. I think there might be a drop of 1 mark from last year cutoff for each award
What were the cutoffs for the awards last year? Also do I have a chance of getting silver with an 11?
my prediction:
Gold: 15
Silver: 10
Bronze: 7
HM: 6
What can a 14 get me?
Not possible for bronze and hm to differ by 1 only
gold or silver. wish you all the best for gold.
maybe
Gold: 15
Silver: 10
Bronze: 7
HM: 5
Will bronze drop to 6?
can get silver with 9?
^^ same question
what will 25 get me
I only got 26 questions correct, very sad now :(
Ashish, 25 questions will get you #1 ranking
what will 3 get me
What will I get with 17/25?
oh sorry 16/25
16/25 is most likely a gold
Did you guys think this paper was easier or harder than past years?
i feel it is easier
not sure tho
Any information on the cutoff point?
Is cut-off for gold 14/25?
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