2010
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26
Oct
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GCE O Level Oct/Nov 2010 E-Maths 4016 Paper 1 Suggested Answers & Solutions???

(43)
Posted at 11:40 pm by Miss Loi in Miss Loi the Tutor

The first skirmish in this Week of Mathematical Armageddon occurred this afternoon, and since then the Battle Control Centre that is The Temple has gone into overdrive with reports from the battlefields across Singapore.

Thank you Ms Loi. Today’s paper was relatively easy.

Paper one went relatively well =)

2day was easy!

I found the paper very manageable. I had time to re-check.

Ms Loi!! The paper hard siak!!!!!!! (Miss Loi: Aiyooo … *shakes head*)

Interspersed among these frantic messages were more frantic messages and calls from unknown students who allegedly “couldn’t stand the uncertainty anymore” and kept pestering asking Miss Loi when would the EMaths Paper 1 solutions be posted up.

Unfortunately, since the answers were written on and handed in together with the question paper, the ‘O’ Level EMaths Paper 1 question paper tends to be a bit of a holy grail of exam papers these days.

And since The Temple does not have the evil policy of asking its students to steal, smuggle or even copy out the questions during the exam itself (obviously, ANY spare time is better spent on checking the answers more than anything else), Miss Loi unfortunately couldn’t produce any solution without the questions.

But as fate would have it, just as Miss Loi was letting out a sigh of resignation, a student strode into The Temple, held a couple of pieces of paper high in the air and exclaimed “MY SOLUTIONS!!!!!!!!!”

And so in order the pacify the anxious callers, this is what Miss Loi can offer here for now as far as 2010 EMaths Paper 1 goes (in the absence of the question paper):

O-Level October/November 2010 EMaths 4016 Paper I Solutions (Tentative)

O-Level October/November 2010 EMaths 4016 Paper I Solutions (Tentative)

Please understand that these solutions have NOT BEEN CHECKED BY ANYONE AT ALL, apart from the student who claimed to have 45 mins of spare time to do this during the exam (aiyohh …), and there are bound to be some mistakes (in fact the student-in-question has already admitted some have been spotted). But given the situation this would have to do for all of you who are anxious to see if anyone gets the same answers as you. Alright the verified ones are up above (albeit late – sorry Miss Loi’s students don’t possess superhuman mega memory abilities to recall the entire set of EMaths Paper 1 questions :P ) So do leave a comment should you spot something that isn’t right, and do pardon the messy chunk of words towards the end.

But MOST IMPORTANTLY, it’s time to turn your attention to tomorrow’s EMaths Paper 2, and here are some of the remaining topics that you may want to focus on:

One down, one or three (depending on whether you take AMaths) more maths papers to go! It’s coming thick and fast now!

ALL THE BEST & GANBATTE!
頑張って!!!

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Comments & Reactions

37 Comments

  1. TYS's Avatar
    TYS says


    2010
    Oct
    27
    Wed
    10:44am
     
    1

    Thks for your tentative solutions for 2010 EM P1. I am inquiring why 1/ 2*x^-5 = x^5/2 for Q4(b) since this question is NOT 1 / (2*x^-5) , right? Shouldn't it be 1/2 * (x^-5) ?

  2. peter's Avatar
    peter says


    2010
    Oct
    27
    Wed
    11:45am
     
    2

    im pretty sure the ans for number pattern is 2n+1 , 2n+3 can anyone confirm this?

  3. Fred's Avatar
    Fred says


    2010
    Oct
    27
    Wed
    7:05pm
     
    3

    As for the 2n-1 thing, i think 2n-3, 2n-5 is possible. Of course 2n+1 and 2n+3 are definitely correct. Question nvr specify if it was decreasing or increasing, and patterns can be decreasing as well.



  4. 2010
    Oct
    27
    Wed
    9:21pm
     
    4

    For question 14b), the answer is 3.33 nanoseconds, not 3 X 10^17 nanoseconds. Calculation error somewhere...
    For question 8, is it okay to draw just one line with a full dot above -3 and a circle above 7? I've done that previously but I'm not sure if Cambridge accepts it...
    @Peter: Confirmed and checked with my school's maths teachers. It's 2n+1 and 2n+3. Good job!

  5. Raymond's Avatar
    Raymond says


    2010
    Oct
    27
    Wed
    9:56pm
     
    5

    When will the paper2 solutions be out? By tonight??

  6. shu yi's Avatar
    shu yi says


    2010
    Oct
    27
    Wed
    10:12pm
     
    6

    hi i already counted my total marks for p1 and p2 and it's between 93 and 95... but some say even this mark cannot guarantee A1, is it true?



    • 2010
      Oct
      27
      Wed
      10:28pm
       
      6.1

      @shu yi: @Shu Yi: A1 marks will never go that high... The highest ever seems to be around 85. It will never be above 90... Even professionals make mistakes, you know.



    • 2010
      Oct
      31
      Sun
      10:04pm
       
      6.2

      @shu yi: According to The Seer this year, 86.1% (3 sig. fig.) should bag you an A1 :P

      ... estimating A1 to be 155/180, A2 to be 145/180, B3 to be 135/180 and B4 to be 125/180

      However Miss Loi has always advocated aiming for "85% for A-Maths and 90% for E-Maths to get an A1!" to allow for unknown/hidden marks lost through workings, significant figures etc.

      But then again there's the nasty polygonic parasite X to wreck havoc so grades cut-offs may be a little more realistic this year..

      Anyway, it's over so don't dwell too much into it ok? Ganbatte for your remaining subjects! ;)

  7. torrers's Avatar
    torrers says


    2010
    Oct
    27
    Wed
    11:27pm
     
    7

    I agree with fred. it could be either way, up or down. this is a ambiguous case.

  8. cheryl's Avatar
    cheryl says


    2010
    Oct
    28
    Thu
    9:31am
     
    8

    Hi ms loi, for 2010 emath p1 sets question, will they penalize if i never put the curly bracket?

  9. cheryl's Avatar
    cheryl says


    2010
    Oct
    28
    Thu
    9:35am
     
    9

    Hi ms loi, for emath p1 2010, will they penalize if i never put the curly bracket when listing the elements for the sets question

  10. Fred's Avatar
    Fred says


    2010
    Oct
    28
    Thu
    6:51pm
     
    10

    2n-1 question. ambiguous ba. tsk!

  11. liliting's Avatar
    liliting says


    2010
    Oct
    30
    Sat
    12:09am
     
    11

    er will 50 marks will it be a c6 or d7?

  12. liliting's Avatar
    liliting says


    2010
    Oct
    30
    Sat
    12:11am
     
    12

    i super worrrrying now ><



  13. 2010
    Oct
    30
    Sat
    12:12am
     
    13

    Folks, just a shoutout that the tentative 2010 EMaths P1 solutions has been updated with Miss Loi's verified worked solutions to 2010 EMaths Paper 1.

    Have a look at the full set (incl past years' solutions).

  14. liliting's Avatar
    liliting says


    2010
    Oct
    30
    Sat
    12:16am
     
    14

    miss low will c6 = 50 marks?

  15. sharon's Avatar
    sharon says


    2010
    Oct
    30
    Sat
    3:22pm
     
    15

    miss loi,may i ask you,for paper 1 question 22a,i wrote 4n-1 and 6n-1,is it possible? sorry,i forgot the exact question,so i wish to ask u,thx.

  16. Sanchez's Avatar
    Sanchez says


    2010
    Oct
    30
    Sat
    3:29pm
     
    16

    i'm sorry, but apparently you misread the question for the probability question. It says all the dice are thrown at the same time. So for the last part, you can't x 3 for the answer



    • 2010
      Oct
      30
      Sat
      5:30pm
       
      16.1

      @Sanchez: Alright Q11(c) asks

      If three dice are thrown at the same time, what is the probability that the total of the three numbers shown is 17?

      First of all can we agree that for this to happen, one of the the following three cases has to occur?

      6,6,5
      6,5,6
      5,6,6

      Taking the first case: what is the probability that when three dice (let's label them A, B and C) are thrown together, we get Dice A showing 6 AND Dice B showing 6 AND Dice C showing 5?

      Since whatever each dice ends up with is independent of the other two dice, we multiply i.e.

      P(6,6,5) = 1/6 × 1/6 × 1/6

      So it follows that

      P(6,5,6) = 1/6 × 1/6 × 1/6
      P(5,6,6) = 1/6 × 1/6 × 1/6

      However we only have one chance to throw the three dice together. So we'll either get 6,6,5 OR 6,5,6 OR 5,6,6 i.e. P(6,6,5), P(6,5,6) & P(5,6,6) are mutually exclusive events since when one occurs the others cannot possibly occur
      ⇒ so we add them up ...

      ∴ P(Sum of 3 dice = 17) = P(6,6,5) + P(6,5,6) + P(5,6,6)
      = (1/6 × 1/6 × 1/6) + (1/6 × 1/6 × 1/6) + (1/6 × 1/6 × 1/6)
      = (1/6 × 1/6 × 1/6) × 3
      = 1/36

  17. UNKNOWN's Avatar
    UNKNOWN says


    2010
    Oct
    30
    Sat
    9:36pm
     
    17

    HELLO im new here.
    can i know how do i view the solution?
    Open with what progarm?

  18. Fred's Avatar
    Fred says


    2010
    Oct
    30
    Sat
    9:55pm
     
    18

    Miss loi, do you for the (2n-1) question, can i put the next two numbers as (2n-3) and (2n-5)?

    Thanks!

  19. Faye's Avatar
    Faye says


    2010
    Oct
    31
    Sun
    3:19am
     
    19

    i cant open the e maths paper 1 solution. is there anyway to get it?

  20. ah seng's Avatar
    ah seng says


    2010
    Nov
    15
    Mon
    12:49pm
     
    20

    Hi thanks for the answers! May i ask for question 22, how many marks is that full question? thanks

6 Reactions

  1. Tweetback
    Miss Loi tweeted


    2010
    Oct
    26
    Tue
    4:14pm
     
    21

    The most tentative EMaths Paper 1 solutions I've ever put up, along with topics to focus on for Paper 2: http://bit.ly/aXcIxq

  2. Tweetback
    Alvin Wong tweeted


    2010
    Oct
    26
    Tue
    4:18pm
     
    22

    RT @MissLoi: The most tentative EMaths Paper 1 solutions I've ever put up, along with topics to focus on for Paper 2: http://bit.ly/aXcIxq

  3. Tweetback
    Wanyu Lee tweeted


    2010
    Oct
    27
    Wed
    1:29pm
     
    23

    http://bit.ly/akB6c5 this is e link to the suggested ans for paper1 em..

  4. Tweetback
    Emily tweeted


    2010
    Oct
    27
    Wed
    2:26pm
     
    24

    RT @MissLoi: Retweet This Blog Post http://bit.ly/96XM82 GCE O Level Oct/Nov 2010 E-Maths 4016 Paper 1 Suggested Answers There goes my marks



  5. 2010
    Oct
    30
    Sat
    8:34am
     
    25

    RT @MissLoi: Retweet This Blog Post http://bit.ly/96XM82



  6. 2010
    Nov
    14
    Sun
    1:08pm

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