**Ordinary Level Maths Paper 2...Before/After**

EducationFinder

Am kinda speechless about thoses question. Maybe I failed that why am saying this but it was kinda easy enough. It wasn't as bad as the mock or sample paper. Anyone wanna post their answers XD

carlgeoghegan

Pretty sure i got in and around 11.48 or so for that.....overall happy enough apart from the centre of enlargement question....how did you calculate o to b?

Bears and Vodka

motorola1337 wrote: »

this makes me questin my answer because i got 9.85 =/

FG is almost definitely 12.5m. and the scale factor is 1.25

motorola1337 wrote: »

If it was the distance of the line on the bottom, you had to use cosine rule to get it...i named the line x and used the 8,9 and 60dg angle. If it was the line going from top to bottom and the very end, you had to find the scale factor of enlargement and go on from there

DAMN ! I took some arseways route with that question and got roughly 34m from O to B. It's definitely wrong but I think it's not too far off.

obliviousgrudge

Hagz wrote: »

For the car question, did anyone else say that there were more cars sold in January because people wanted the new year number on their plate? Did any of you guys estimate that the 2012 annual total would be around 77,000?

Yeah, I said people waned " a newer car for longer" if you know what I mean.
And for the annual total for 2012 I got about 79000 or 80000.

How did everyone else do that part?
I got the January figures from 2011 and found that it was about 45%. I then got the figures for Q1 2012 and divided by 45 and multiplied by 100.
So basically, I took the Q1 2012 figures as 45%.

Bears and Vodka

obliviousgrudge wrote: »

How did everyone else do that part?
I got the January figures from 2011 and found that it was about 45%. I then got the figures for Q1 2012 and divided by 45 and multiplied by 100.
So basically, I took the Q1 2012 figures as 45%.

I also did exactly that. And I said that people tend to wait till the New Year to buy cars because they want to have the new year on the registration plates.

Also, guys do you think it's alright that I calculated the Simpsons Rule question taking squares to be 'units' rather than 5mm or whatever? So my final answer was in units^2

padocon

motorola1337 wrote: »

this makes me questin my answer because i got 9.85 =/

I got 12 for the side of the last triangle. But the restriction was referring to the height of the bridge from the horizon which involves drawing a new triangle, with one angle of 90 degrees. So you can use sin =o/h then to find the length of the bridge from the horizon. Can remember my answer but I think it was compliant with the restriction not sure though. Would have to see the question again.

Killian In The Name Of

Wait... did a Maths exam... just go well enough for me?

Seriously though, such a lovely paper! I think I scraped a pass now. I think.

ConTheCat

So so happy with it. Couldn't do bits but I think failing Maths didn't happen!

Laurasteel

Hey! Did anyone get 8 outcomes for question one

Boy girl girl
Boy girl boy
Boy boy girl
Boy boy boy

Girl boy boy
Girl boy girl
Girl girl boy
Girl girl girl?

carlgeoghegan

Laurasteel wrote: »

Hey! Did anyone get 8 outcomes for question one

Boy girl girl
Boy girl boy
Boy boy girl
Boy boy boy

Girl boy boy
Girl boy girl
Girl girl boy
Girl girl girl?

yeah pretty sure i got the 8 aswel!:D

Killian In The Name Of

Laurasteel wrote: »

Hey! Did anyone get 8 outcomes for question one

Boy girl girl
Boy girl boy
Boy boy girl
Boy boy boy

Girl boy boy
Girl boy girl
Girl girl boy
Girl girl girl?

Yup. I hope it was right. :eek:

obliviousgrudge

subz3r0 wrote: »

I also did exactly that. And I said that people tend to wait till the New Year to buy cars because they want to have the new year on the registration plates.

Also, guys do you think it's alright that I calculated the Simpsons Rule question taking squares to be 'units' rather than 5mm or whatever? So my final answer was in units^2

Thats what I did anyway.

Did you get the formula to be something like 3/20(0+0+2(30+40)+4(50+35)
I know it wasnt exactly that but my first and last height was 0, did anyone else get that?

Laurasteel

Oh great cuz I was worried it was six 3! But appeared to be more than six!!

Laurasteel

What did everyone get for the total of the simposons rule!!
The start and end are 0!!

carlgeoghegan

think i got 4733.33mmsquared for simspons rule....anybody else get that?

obliviousgrudge

Laurasteel wrote: »

What did everyone get for the total of the simposons rule!!
The start and end are 0!!

Forget what I got but at least someone else got 0 and 0 for the first and last, did it in a rush and wasn't sure if I was right

Iony94

I think i got 106.50 mm2 for the area.... in the sims

obliviousgrudge

carlgeoghegan wrote: »

think i got 4733.33mmsquared for simspons rule....anybody else get that?

That rings a bell alright

Fergus_

carlgeoghegan wrote: »

think i got 4733.33mmsquared for simspons rule....anybody else get that?

That's what I got as well

carlgeoghegan

the enlargement question with the part calculate o to b....is the only bit i didnt get on the paper

Mysteriouschic

carlgeoghegan wrote: »

think i got 4733.33mmsquared for simspons rule....anybody else get that?

I think I got that too. I was wondering if I went wrong.

Astrozombies

I didn't get to finished the last Q, I am HORRIFIED it was so do-able too
didn't get the last part of the tangent Q too and forgot how to calculate a pie chart lol but other than that it went real well hoping for a B2 overall.

obliviousgrudge

Didn't get a few:
the parallelogram question
part (ii) and (iii) of the final, Area and Volume, question
the O to B part in the Trigonometry question
the one that asked what a scalene triangle was

and a few more I think

Cruel Sun

carlgeoghegan wrote: »

think i got 4733.33mmsquared for simspons rule....anybody else get that?

I think I got that too.

Iony94

**** ... how silly, i divided the last line instead of multiplying

20/3 (710)

still i think i ll get most of the marks..

Hagz

obliviousgrudge wrote: »

How did everyone else do that part?
I got the January figures from 2011 and found that it was about 45%. I then got the figures for Q1 2012 and divided by 45 and multiplied by 100.
So basically, I took the Q1 2012 figures as 45%.

I found the % decrease from each quartile in each year and then got the average of those percentages and then used those averages on the 2012 figure.

EducationFinder

Killian In The Name Of wrote: »

Laurasteel wrote: »

Hey! Did anyone get 8 outcomes for question one

Boy girl girl
Boy girl boy
Boy boy girl
Boy boy boy

Girl boy boy
Girl boy girl
Girl girl boy
Girl girl girl?

Yup. I hope it was right. :eek:

OH NO

obliviousgrudge

EducationFinder wrote: »

OH NO

I spent ages on this as I thought there was supposed to be nine (3x3=9)
Ah well, least I got it.

annettesayz

Looking at the 'after threads' is not good... I'm realising all of my mistakes now! Aahh

biohaiid

Such an easy paper.
Apart from rushing the end cos' I thought we had more time, I think it went really well.
Confident of passing.