Tuesday, 31 May 2016

SMO 2016 (Junior Section) Answers

SMO 2016 Junior Round 2 List

Cut off for Rd 2 ~20-21

SMO 2016 Junior Questions

SMO 2016 (Junior Section) Answers

1. A
2. A
3. C
4. D
5. A
6. C
7. D
8. B
9. C
10. A
11. 143
12. 36
13. 4032
14. 25
15. 31486
16. 51
17. 326
18. 4 (*amended)
19. 9
20. 216
21. 55
22. 2550 (or 2460, if excluding 090)
23. 25
24. 8
25. 134
26. 125
27. 8
28. 82
29. 25
30. 120
31. 3
32. 5
33. 30
34. 21
35. 2195 (*amended)

For previous years' cut off points to special round, please refer to an old blog post here.

36 comments:

Anonymous said...

Is this year harder than last year?
What do you approximate the cut off point to be?

Anonymous said...

Qn35 only has n=2015, 180

Anonymous said...

What do you think the cut-off point would be for bronze?

Anonymous said...

Question 16:
AP = either 27 or 29

27 + 29 = 56

Can anyone clarify this thanks.

Anonymous said...

What is this year's cut off for round 2?

Anonymous said...

Why is question 8 ans 5?

Anonymous said...

Sorry question 18

Anonymous said...

What do you think is the cut-off point for Bronze. Is about 10 points enough?

Anonymous said...

Based on past years result 10 points in enough for Bronze I am wondering whats the cop for hon mention though

Anonymous said...

What's the estimated minimum for bronze?

Anonymous said...

Do you find the difficulty of the paper to be similar, easier, or tougher compared to other years?

PurpleLord 2003 said...

I think this paper was tougher than other years, what do you guys think?

Anonymous said...

Do you guys think 8 is just enough for bronze?

Anonymous said...

I also got exactly 8, hoping for a bronze

Anonymous said...

Same, really hope it's just enough

Anonymous said...

No, AP is either 25 or 26.

First, note that triangles ADQ and AQP are similar such that DQ/QA=AQ/AP and hence AQ^2=DQ*AP.
Next, AD^2 + DQ^2 = AQ^2 = DQ*AP such that 12^2+DQ^2=DQ(34-DQ), yielding DQ=8 or 9 and hence AP = 25 or 26

Anonymous said...

can u pls post some explanations

Li Hantao said...
This comment has been removed by the author.
Anonymous said...

I got exactly 18, do u guys think that is a gold?

Ng Bee Yong said...

Hi Hantao, the initial answers are provided by a student fr NUSH. I will ask Lim Jeck or Lim Li to check the answer for Q18. Thanks.

Ng Bee Yong said...

Lim Jeck has confirmed answer for q18 to be 4. It is amended. Thanks Hantao.

Li Hantao said...

Thank you! ☺

Anonymous said...

are all the answers here correct?do your think this paper is easier or tougher than previous years?

Anonymous said...

hi, anyone knows when the results are out ? thanks

Anonymous said...

Hi, dont think the cutoff is so high cos my friend and i got 15 and we both got into round 2.

Anonymous said...

15 for junior can get in ? I feel this year harder than last year.

Anonymous said...

I got around 16, but still got into round 2, so I don't think the cut-off is that high

Anonymous said...

Anyone knows how to do question 4? The question is on tourist.

Anonymous said...

You got to realise (and prove) that if there are n tourists, the minimum would be (n - 7) tourists. Since the minimum number of tourists is 10, the minimum would thus be 10 - 7 = 3.

Anonymous said...

Just consider when n = 10 to 13, there is a way to get 3 tourists only.

Anonymous said...

How's round 2? How many questions can you do ?

Anonymous said...

Are the round 2 results out yet?

Anonymous said...

Any idea when results will be out?

Anonymous said...

Some Question the answers r wrong

Đặng Kim Oanh said...

hello,I'm Vietnamese.I can't find
SMO 2016 Junior Round 2 Questions. I hope you help me. Thank you very much.

Unknown said...

Can we havr have link to the solutions please.
Thanks