ICAS Mathematics Competition (2 Viewers)

nerdasdasd

Dont.msg.me.about.english
Joined
Jul 29, 2009
Messages
5,353
Location
A, A
Gender
Male
HSC
2012
Uni Grad
2017
Oh nevermind, was going to upload, but the files are corrupted lol.
 

Resource

New Member
Joined
Jun 28, 2013
Messages
20
Gender
Undisclosed
HSC
2015
Yes the H paper did have the 117 answer question but so did the Year 12 (J) Paper.
 

MineTurtle

New Member
Joined
Aug 1, 2013
Messages
27
Gender
Female
HSC
2016
It was question 40 on the H paper so you might not have had it. I can't really remember much about it so I'm being very vague...
Yeah, I'm pretty sure that Paper G and Paper H are the same, coz I had the same question and I did Paper G. Anyways, here's the rug question so you all remember...

Sue works in a rug shop. She has three rugs with a combined area of 200sqm. Sue arranges the rugs so they overlap and cover a floor area of 140sqm. The total floor area that is covered by exactly two layers is 24sqm. What is the floor are that is covered by exactly three layers of rugs, in square metres.

This is how I did it:

Draw 3 rugs (square or circular) that have 3 ares where there are no overlaps, 3 areas where two rugs overlap and 1 area in the middle where all three rugs overlap.

Since the new area (when rugs are overlapped) is 140sqm, total area of the rugs that are overlapped is 200sqm-140sqm which equals 60sqm. The area of overlapped rugs where only two rugs are overlapped is 24sqm (as mentioned in the question). Therefore the area where three rugs overlap must be 60sqm-24sqm which equals 36sqm.

Answer(Well, what I put down)= 36sqm
 

MineTurtle

New Member
Joined
Aug 1, 2013
Messages
27
Gender
Female
HSC
2016
Yes the H paper did have the 117 answer question but so did the Year 12 (J) Paper.
The G paper also had that question! Although it is common for them to repeat throughout year levels.

Here's the question:

a, b, c are three positive whole numbers.
Their sum is 117.

- a is a prime number
- b and c are multiples of a
- b <= c (b is smaller than or greater than c)

What is the greatest possible value for the product abc?

(A) 9 747
(B) 15 379
(C) 35 152
(D) 42 237

I'm pretty sure someone explained why/how it's C. I did it slightly differently but got the same answer anyway.
 
Last edited:

RealiseNothing

what is that?It is Cowpea
Joined
Jul 10, 2011
Messages
4,591
Location
Sydney
Gender
Male
HSC
2013
Got results today, 38/40 :(

Still not sure if that's a medal or just a HD though, haven't received the actual award. All it says is "this score is in the 99th percentile etc".
 

Makematics

Well-Known Member
Joined
Mar 26, 2013
Messages
1,829
Location
Sydney
Gender
Male
HSC
2013
Got results today, 38/40 :(

Still not sure if that's a medal or just a HD though, haven't received the actual award. All it says is "this score is in the 99th percentile etc".
"Only" the 99th percentile lol... Dude if you toppe the state last year with 34, surely you crushed everyone this year?
 

Recondit

ヽ(" `Д´)ノ
Joined
May 3, 2012
Messages
400
Gender
Male
HSC
2013
When will the results show on the ICAS website?
 

Menomaths

Exaı̸̸̸̸̸̸̸̸lted Member
Joined
Jul 9, 2013
Messages
2,373
Gender
Male
HSC
2013
Got results today, 38/40 :(

Still not sure if that's a medal or just a HD though, haven't received the actual award. All it says is "this score is in the 99th percentile etc".
Is your name Ash?
 

RealiseNothing

what is that?It is Cowpea
Joined
Jul 10, 2011
Messages
4,591
Location
Sydney
Gender
Male
HSC
2013
"Only" the 99th percentile lol... Dude if you toppe the state last year with 34, surely you crushed everyone this year?
This year felt easier though + year 12 not year 11 so the medal would be a higher score.
 

obliviousninja

(╯°□°)╯━︵ ┻━┻ - - - -
Joined
Apr 7, 2012
Messages
6,624
Location
Sydney Girls
Gender
Female
HSC
2013
Uni Grad
2017
Does NSG have a week long muftiday or something?

Realise, what uniform did u wear for 'boys' day? My friend wore grammar i think?
 

Users Who Are Viewing This Thread (Users: 0, Guests: 2)

Top