SMO 2018 Junior Rd 2 Namelist
Junior Round 2 Cut-off: 16
SMO 2018 Junior Rd 2 Questions
SMO 2018 Junior Questions
SMO 2018 (Junior Section) Answers
1. E
2. B
3. D
4. C
5. B
6. 100
7. 11
8. 180
9. 3003
10. 810
11. 54
12. 5200
13. 550
14. 904
15. 90
16. 35
17. 1440
18. 3200
19. 20800
20. 2
21. 9
22. 25249
23. 568
24. 90
25. 1009
how do u get the ans for q25
ReplyDeletehow is q25 1009
ReplyDeleteConsidering x terms,
ReplyDelete1 - (1-x) + (1-x)^2 - (1-x)^3 + (1-x)^4 - ... - (1-x)^2017
= x - 2x + 3x - 4x + ... + 2015x - 2016x + 2017x + ...
Coefficient of x
= 1 - 2 + 3 - 4 + ... + 2015 - 2016 + 2017
= 1008(-1) + 2017
= 1009
Why is there 25 qns this year?
ReplyDeleteThe format had changed
DeleteAny idea what may be the cut off score this year?
ReplyDeleteWhy is 54 the answer for question 11?
ReplyDelete
ReplyDeletesomebody say, cut off : 12--13
Is 16 enough for gold?
ReplyDeleteThis year's paper is much more easier, which includes many primary school questions. Personally I think. And the format changed
ReplyDeletehow many questions must we get correct for bronze/silver/gold
ReplyDeleteHow much do you think we'll need to get gold?
ReplyDeleteI got 20 out of 25 for the first round but then my coach said i might not make the second round.
ReplyDeleteyes, much easier and longer time for each try. 21 as cut off point will not be surprise.
ReplyDeleteSome questions were doable, some were hard
ReplyDeletethanks yall for making me look like an idiot :') i probably got like 6
ReplyDeleteIs 10 enough for honourable mention?
ReplyDeleteGuys I need your help. Is 16 to 17 enuf for silver?
ReplyDeleteWill they be more lenient in this time’s grading system? Coz I think there are fewer choices of questions to choose from, which means that the paper is more difficult the scope is narrower.
ReplyDeleteGuys what rank is 15???
ReplyDeleteHi guys, is 16 enough for Round 2/ Gold?
ReplyDeleteEveryone who goes to round 2 is guaranteed silver, and in order to get gold you must get into round 2 and do well in it I think.
ReplyDeleteWait if we can get 15 can we get into the second round. My friend said the cut-off should be about 10-15, but I am not sure. How am I supposed to know?
ReplyDeleteGuys I got like 6 will that get me into round 2? I really want top 30
ReplyDeleteI think that is participation tbh
DeleteIs 20 enough for round 2??
ReplyDeleteWill 10 get me a silver? I want to get into 2nd round badly...
ReplyDeleteIs 12 enough for a bronze?
ReplyDeleteI would estimate the round 2 cut-off to be around 17-18 probably
ReplyDelete@anon who got 6 yeah u round 2 and gold.
ReplyDeleteWhat'll be the cutoff point for this year? I got 21/25...not sure if that's enough...I know people who got 24...
ReplyDeleteHow do u get ans for q12?
ReplyDeleteThis years paper was very easy. I checked my answers and I think that I got 25/25
ReplyDeleteWhat is the total mark required to get top 30 ... special round seems very difficult
ReplyDeleteWill 15 get me a sliver?I really want to get top 30
ReplyDeleteI checked my answers and I think that I got 15/25. Is it enough for a bronze?
ReplyDeleteI got around 12 correct.. would that get me at least a bronze?
ReplyDeleteIs 20 enough for round 2? Primary 6 here.
ReplyDeleteIs 30/25 enough for round 3? Primary 1 here.
DeleteQ12 is not 5200.Let the total number of phone is p.
ReplyDeleteWe have: 1800=200*(p-2)-m/p
=>1800=200p-400-m/p
=>2200=200p-m/p
=>p>=2200/200=11
In other way, m is smallest so p is also smallest.
If p=11 => we have: 2200=2200-m/11
=>0=0-m/11
=>m=0
But m cannot be 0 so species
If p=12 => we have: 2200=2400-m/12
=>0=200-m/12
=>m/12=200
=>m=2400
Thus the smallest value of m is 2400
p is a prime
Deleteis ten enough for a award?
ReplyDeletewhat will 14 get me?
ReplyDelete14 will get you bronze to silver. Likely bronze.
ReplyDeleteCan anybody help me with qn 18 ? Its pretty confusing
ReplyDeleteNews!! SMO ROUND 2 RESULT CAME OUT!! CHECK EMAIL AND WITH YOUR RESPECTIVE SCHOOLS!!! I got 20/25 and got in round 2!! Can someone say how much they get so we know the COP?
ReplyDeleteHello, are the round 2 namelist out online already?
ReplyDeleteIf so, can you send me the link to the name list?
ReplyDeleteCutoff should be about 15. Anyone getting below 15 and got into round 2?
ReplyDelete16/25 here.... chances of getting into R2? I understand I'm treading on a tightrope (between getting and not getting into R2) here....
ReplyDeleteHave yet to receive email although nobody I know has, even those with >18 questions correct... is there perhaps a namelist you can share?
i have got the list of 2nd round participant, it is given via email. i can try to find your name if you give your initial name. only 230 names on my list
ReplyDeleteThis comment has been removed by the author.
ReplyDeleteIs it ok to just send the list so everyone can check themselves?
ReplyDeletehey justyn, what were you wrote before? haha, congrats btw! how many questions you got right?
ReplyDeleteAre there any Chung Cheng High Main winners?
ReplyDeleteYes, only one. entry number 18 : Young Y H
ReplyDelete@ Justyn, for question number 18, just make a line from D to C, after that you can solve it using area of triangle. -Hd
ReplyDeleteWill the list of round 2 participants be posted here?
ReplyDeletehttps://goo.gl/zh9jf4
ReplyDeleteR2 list for your reference (I suppose there are no inaccuracies)
Cutoff this year should have been 16 - I'm the 16/25 boy (refer to comment on 11 June at 2203) and I know people with 15/25 who are not in R2
Do u have senior and open lists
DeleteAny idea how many people participated? I wanna know what is the percentage cutoff for round 2 participants.
ReplyDeleteTop 10% in R2 so ~2300 ppl
ReplyDeleteDoes the list provided only contain of Sec 1s?
ReplyDeleteResults out at SMS website:
ReplyDeleteJunior http://sms.math.nus.edu.sg/Competitions/SMO2018/R2Junior-2018.pdf
Senior http://sms.math.nus.edu.sg/Competitions/SMO2018/R2Senior-2018.pdf
Open http://sms.math.nus.edu.sg/Competitions/SMO2018/R2Open-2018.pdf
Good lucks to all...
Yes I think the list only contains of Sec 1s
ReplyDeleteis 10-11 enough for bronze?
ReplyDeleteI got 25/25; I got into Second Round.
ReplyDeleteI got selected for Round 2
ReplyDeleteCongrats!
ReplyDeletequestion 1 of round 2 is recycled from past year.
ReplyDeleteWhat is the answer for Question 2 of SMO round 2?
ReplyDeleteI think Q2 of SMO round 2 is 14√2
ReplyDeleteBy hypothesis, it's easy to prove that ABC is an equilateral triangle
No its 14
ReplyDeleteYou have to use similarity laws making triangle ABC similar to triangle BCD to find BD as square root of 196 so BD = 14
ReplyDeleteCan someone share the Round 2 answers. I felt it was a bit too hard.
ReplyDeleteWas it too hard? It was actually easier than last year IMO
ReplyDeleteI believe the answers are somewhere along these lines
1. (8,1), (4,4), (0,7)
2. 14
3. 1023 (on hindsight I believe it is 2047 or 2048)
4. 130
5. 5-12, 14
Can someone check? Thanks in advance
I think I got like 39
ReplyDeleteIs it good?
ReplyDeletewow, 39? is that your score on 2nd round only? and will the result from previous round get added to my score on the round 2? i think i got 30 for 2nd round and 20 from the first round. how much more point usually needed on the 2nd round to get gold? i think that 2nd round question from previous year is almost impossible to answer by normal student,only this year that's really easy
ReplyDeleteYes 39 out of 50 on round 2
DeleteHi guys, what do you think is the mark for top 30, like 50/ 75???
ReplyDeleteHi guys, when are the round 2 results going to be out? I want to know how I did>
ReplyDelete@piauw
ReplyDelete1:yes
2:yes
3:how did you get 1023!?!?! I got 23... like firstly, both sides cannot be even
Obviously first case is 1
Then next using my poor logic, I found that for the greatest common divisor=1, one side must be prime numbers >50 (eg 1x47) other side is 100!/47, the greatest common divisor will be 47 even though it is prime because 47x2=94 is there and 94 can divide by 47...
So cases is 11 primes >50 times 2(53 and 53x1) + original 1 case
4:they asked for the integers... not how many...
5: you said pentagon can be made but interior angle of pentagon is 108.. how do you make 108 with 60 and 90 only?
Anyway I am just stupid boy correct me because I sure as hell 99% am wrong
Any 1 here revising for SMO 2019
ReplyDeleteme
ReplyDeleteHello Lim Jeck, I appreciate your blogs, when will the 2019 answers come out?
ReplyDeleteout alr
DeleteCould you send the answers to the SMO senior section 2019?
ReplyDeleteout alr
DeleteIs the junior section out
ReplyDelete