JC 2013 Maths Paper 2 - Mon. June 10th 2013 - OL and HL

claryfray · 10-06-2013 4:55pm

Well thought it was wayy easier than the mocks. However I still did quite poorly, as comparing my answers with everyone else's mine were all different (and everyone else got the same answer :L)

The people who are good at maths in my year thought it was so easy they were laughing :P

zubikhan · 10-06-2013 4:56pm

Was the easiest paper I have came across with, but I have no idea what happened to me, it as if KARMA struck me, I done very bad in it despite even me knowing it was very easy paper, I was quite disapointed they did not put the theroems in after spending ages learning them

zubikhan · 10-06-2013 4:57pm

I just really hope I get 200 marks in it because that is all I need to secure my B

claryfray · 10-06-2013 5:00pm

Upset theorems didn't come up because I knew them off by heart A+++ because I am diabolical at Maths and it was the one Q I thought I was guaranteed the marks
oh well

Lost In Confusion · 10-06-2013 5:00pm

It's the best birthday ever, an awesome paper 2 and Well Cspe.... I will get my paper rechecked if i don't get an a in cspe :P

claryfray · 10-06-2013 5:00pm

Lost In Confusion wrote: »

It's the best birthday ever, an awesome paper 2 and Well Cspe.... I will get my paper rechecked if i don't get an a in cspe :P

HAPPY BIRTHDAY :DDD

Stooped · 10-06-2013 5:03pm

Am I the only one who's happy that theorems didn't come up? Because I didn't even know them.

OisinLAD · 10-06-2013 5:04pm

I'm worried that Paper 2 really was TOO awesome.. I think DublinArnie is right in the fact that they ain't gunna be throwing A's around this year after looking at paper 2.

zubikhan · 10-06-2013 5:08pm

Sure they made quite a few mistakes in p2 so I for one believe they should be throwing As in the pie chart question where it asked you find the number of girls who kept their phones under pillow the answer was a decimal, and I had gotten the answer so many times but like obviously from common sense you cannot have xxxx.x girls !!!
And yeah people so you were supposed to round it off, from doing all the past papers, for a question that has a decimal it always says to round of so we are sure, they should reduce the whole question to 5 marks ONLY!!! I did not do the whole question because of how craply worded the question was laid out or other wise I would had gotten all parts to it
Disappointed SEC

claryfray · 10-06-2013 5:11pm

zubikhan wrote: »

Sure they made quite a few mistakes in p2 so I for one believe they should be throwing As in the pie chart question where it asked you find the number of girls who kept their phones under pillow the answer was a decimal, and I had gotten the answer so many times but like obviously from common sense you cannot have xxxx.x girls !!!
And yeah people so you were supposed to round it off, from doing all the past papers, for a question that has a decimal it always says to round of so we are sure, they should reduce the whole question to 5 marks ONLY!!! I did not do the whole question because of how craply worded the question was laid out or other wise I would had gotten all parts to it
Disappointed SEC

Yeah that confused me so much! I kept re-doing it and continually got the same decimal answer it was extremely frustrating!

OisinLAD · 10-06-2013 5:12pm

I agree 100% with you there. That question was worded TERRIBLY. The last two questions I wasn't quite sure what they were asking me, but I'd say I still got full marks

If the papers go up on examinations.ie let me know

Lost In Confusion · 10-06-2013 5:17pm

claryfray wrote: »

HAPPY BIRTHDAY :DDD

haha thanks :P I didn't even realize this morning till my mother reminded me... The stress exams can do to you :P

Bluestrike · 10-06-2013 5:18pm

juniorcert wrote: »

Ugh that's so unfair Wish it was harder now, haha. Do they do the same at leaving cert? :eek: That could mess up people's career choices....

They do it so that no exam is harder than another, like even if it is a way harder or easier paper they will want same number of A's, B's C's etc every year. In french, they completely change the amount of marks per question so that they get same amount. In a way its unfair because if there are too many A's, you can be put down to a B but vice versa, if not enough get A's and you got like 83% and your examiner thought you wrote well but you didnt write enough points, you can be bumbed up to an A. I hope that makes sense to you

Bluestrike · 10-06-2013 5:30pm

LawdyLad wrote: »

What answer did people get for Q1 part D where it asked how many flagstones are needed to cover the pavement.

I got 507 this is how..

13 m/0.8 m = 16.25 (find how many fitted in length)
13 m/0.5 m = 26 (find how many fitted width)
16.25 x 26 = 422.5 (find area)
422.5 x 20/100 = 84.5 (20% extra)
422.5 + 84.5 = 507
Therefore he needs 507 flagstones

Cr4pSnip3r · 10-06-2013 5:34pm

I got like. 169m^2 was the area of the patio. Flagstones were 50 x 80 = 4000cm^2.

169 x 100 = 16900cm^2

16900/4000 = 4.225 flagstones. He will need to purchase full flag stones, so he needs to buy 5 of them.

My friend notes, and I will put it here, that it said with 20% waste, and therefore, 20% of 5 = 1, 1+5 = 6.

Bluestrike · 10-06-2013 5:35pm

Lost In Confusion wrote: »

It's the best birthday ever, an awesome paper 2 and Well Cspe.... I will get my paper rechecked if i don't get an a in cspe :P

Wait, its your birthday too? *virtual high five* :P

Drift_King_33 · 10-06-2013 5:35pm

Bluestrike wrote: »

I got 507 this is how..

13m/0.8 m = 16.25 (find how many fitted in length)
13m/0.5m = 26 (find how many fitted width)
16.25 x 26 = 422.5 (find area)
422.5 x 20/100 = 84.5 (20% extra)
422.5 + 84.5 = 507
Therefore he needs 507 flagstones

F**k.. I added 16.25 and 26 -_- I got 50.7

MJ434 · 10-06-2013 5:36pm

Bluestrike wrote: »

I got 507 this is how..

13m/0.8 m = 16.25 (find how many fitted in length)
13m/0.5m = 26 (find how many fitted width)
16.25 x 26 = 422.5 (find area)
422.5 x 20/100 = 84.5 (20% extra)
422.5 + 84.5 = 507
Therefore he needs 507 flagstones

Got that aswell.. Is it right :O

Lost In Confusion · 10-06-2013 5:36pm

Cr4pSnip3r wrote: »

I got like. 169m^2 was the area of the patio. Flagstones were 50 x 80 = 4000cm^2.

169 x 100 = 16900cm^2

16900/4000 = 4.225 flagstones. He will need to purchase full flag stones, so he needs to buy 5 of them.

My friend notes, and I will put it here, that it said with 20% waste, and therefore, 20% of 5 = 1, 1+5 = 6.

i changed the cm into m at the beginning

Bluestrike · 10-06-2013 5:37pm

Cr4pSnip3r wrote: »

I got like. 169m^2 was the area of the patio. Flagstones were 50 x 80 = 4000cm^2.

169 x 100 = 16900cm^2

16900/4000 = 4.225 flagstones. He will need to purchase full flag stones, so he needs to buy 5 of them.

My friend notes, and I will put it here, that it said with 20% waste, and therefore, 20% of 5 = 1, 1+5 = 6.

yes but think about it, 13 metres, and the flagstones were 5 Centimetres by 8 Centimetres so it can be 6

Lost In Confusion · 10-06-2013 5:38pm

Bluestrike wrote: »

yes but think about it, 13 metres, and the flagstones were 5 Centimetres by 8 Centimetres so it can be 6

they were 50 x 80

i did perimeter by accident

****

Lost In Confusion · 10-06-2013 5:39pm

Bluestrike wrote: »

Wait, its your birthday too? *virtual high five* :P

happy birthday

Cr4pSnip3r · 10-06-2013 5:39pm

Bluestrike wrote: »

I got 507 this is how..

13m/0.8 m = 16.25 (find how many fitted in length)
13m/0.5m = 26 (find how many fitted width)
16.25 x 26 = 422.5 (find area)
422.5 x 20/100 = 84.5 (20% extra)
422.5 + 84.5 = 507
Therefore he needs 507 flagstones

16,900cm^2 is the area of the patio.

Each flagstone is 50 x 80, so 4000cm^2.

4000 x 507 = 2028000cm^2. I don't get it, tbh, but you could be right.

Lost In Confusion · 10-06-2013 5:40pm

Cr4pSnip3r wrote: »

16,900cm^2 is the area of the patio.

Each flagstone is 50 x 80, so 4000cm^2.

4000 x 507 = 2028000cm^2. I don't get it, tbh, but you could be right.

i imagined it rong in my head and i went on blabbing aabout perimeters :P woops i didnt know what flagstones were

Bluestrike · 10-06-2013 5:42pm

Cr4pSnip3r wrote: »

16,900cm^2 is the area of the patio.

Each flagstone is 50 x 80, so 4000cm^2.

4000 x 507 = 2028000cm^2. I don't get it, tbh, but you could be right.

for centimetres squared i think you times it more than 100 times
You would turn 13m into centimetres would be 1300
do 1300^2 is 1690000
then 1690000/4000 = 422.5
so your way would have worked but you converted it wrong

Lost In Confusion · 10-06-2013 5:43pm

Bluestrike wrote: »

for centimetres squared i think you times it more than 100 times

right answer is 5 so many people in my class got it and there genuises

Bluestrike · 10-06-2013 5:46pm

Lost In Confusion wrote: »

right answer is 5 so many people in my class got it and there genuises

so 5 times 80 x 50 cm is 13 m^2?

Cr4pSnip3r · 10-06-2013 5:48pm

Bluestrike wrote: »

so 5 times 80 x 50 cm is 13 m^2?

What's 13m^2 all about?

Lost In Confusion · 10-06-2013 5:48pm

Bluestrike wrote: »

so 5 times 80 x 50 cm is 13 m^2?

flagstones are huge

Bluestrike · 10-06-2013 5:49pm

it means metres squared, since you cant actually do a squared sign, thats what people do

JC 2013 Maths Paper 2 - Mon. June 10th 2013 - OL and HL

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