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How difficult was the original mock AMC 12 (V. 3.1)?
Amc 12 2001 22%  22%  [ 6 ]
Amc 12 2001 0%  0%  [ 0 ]
Amc 12 2001 0%  0%  [ 0 ]
Harder than average 67%  67%  [ 18 ]
Harder than average 0%  0%  [ 0 ]
Harder than average 0%  0%  [ 0 ]
Average 4%  4%  [ 1 ]
None of the above (Really?) 0%  0%  [ 0 ]
None of the above (Really?) 0%  0%  [ 0 ]
Simple (Really?) 7%  7%  [ 2 ]
Total votes : 27
Message
Post Posted: Sep 20, 2009, 4:12 pm • # 1 


Separate solution threads have been formed throughout the forum. Access below:

Easy problems

Still simple problems

Moderate problems

Harder problems

The results will come later. For now, we know that the highest score was 120 on V. 3.1. How many points did you improve on V. 3.2?

EDIT: Argh, poll was deleted. There were 3 on 2001, and 4 on above average last time I checked.

EDIT 2: There appears to be a bug with the poll. Oh well, just vote for whatever you feel.
 
 
Post Posted: Sep 22, 2009, 9:24 pm • # 2 


According to early results, here are the scores (subject to change)

Note, everyone received #1 (you could use the points on the test):

:first: alkjash 120

2nd: Brut3Forc3 112.5

3rd: andersonw 109.5

4th: zhou_qiang 106.5

5th: Just_Beginner: 105

6th: Bacteria 102

Yes, only 6 ppl scored above 100 on this test. :o The index of passing is still being determined.

_________________
A collection of problems @ CC&II!

Try a Mock AMC: 9/09. Currently collaborating on another.
 
 
Post Posted: Sep 23, 2009, 1:16 pm • # 3 


In your PM to me you said I got 108...

_________________
"...in their overturned machines, were the Martians-dead... slain, after all man's devices had failed, by the humblest things upon the Earth, Bacteria. Minute, invisible, bacteria!" -Jeff Wayne's Musical Version of The War of the Worlds
 
 
Post Posted: Sep 23, 2009, 1:48 pm • # 4 


Bacteria wrote:
In your PM to me you said I got 108...


As I said, subject to change. gfour84 might have not graded properly :o

_________________
A collection of problems @ CC&II!

Try a Mock AMC: 9/09. Currently collaborating on another.
 
 
Post Posted: Sep 23, 2009, 2:03 pm • # 5 


Ah, I see.
Is an official answer set going to be released?

_________________
"...in their overturned machines, were the Martians-dead... slain, after all man's devices had failed, by the humblest things upon the Earth, Bacteria. Minute, invisible, bacteria!" -Jeff Wayne's Musical Version of The War of the Worlds
 
 
Post Posted: Sep 23, 2009, 2:52 pm • # 6 


Mock AMC 9/09 V. 3.1 Answer Key:
EBBEA BCACB EDEBA AEDDC CABDD

Mock AMC 9/09 V. 3.2 Answer Key:
DEEAC BBCEB CDAEB EDDAA CCABD

Bacteria, I think you missed 8 problems, so I miscounted the wrong time :oops: :P

_________________
A collection of problems @ CC&II!

Try a Mock AMC: 9/09. Currently collaborating on another.
 
 
Post Posted: Sep 23, 2009, 4:39 pm • # 7 


I just compared the answers to the message in my sentbox and I got 18 right :maybe:

_________________
"...in their overturned machines, were the Martians-dead... slain, after all man's devices had failed, by the humblest things upon the Earth, Bacteria. Minute, invisible, bacteria!" -Jeff Wayne's Musical Version of The War of the Worlds
 
 
Post Posted: Sep 23, 2009, 5:58 pm • # 8 


EBEEA BCBCB EDEBA CECDA CCEAD vs
EBBEA BCACB EDEBA AEDDC CABDD

You sure?

_________________
A collection of problems @ CC&II!

Try a Mock AMC: 9/09. Currently collaborating on another.
 
 
Post Posted: Sep 23, 2009, 6:14 pm • # 9 


Oh wow, sorry I was seeing the B as an E in my sleepy state :oops:
I looked it over like 5 times too.

And congratulations to everybody, especially to Caelestor and gfour84 and whoever else helped make such a hard test.

_________________
"...in their overturned machines, were the Martians-dead... slain, after all man's devices had failed, by the humblest things upon the Earth, Bacteria. Minute, invisible, bacteria!" -Jeff Wayne's Musical Version of The War of the Worlds
 
 
Post Posted: Sep 23, 2009, 9:28 pm • # 10 


NOOOO! 99 so close...

_________________
Hi.
 
 
Post Posted: Sep 29, 2009, 9:02 pm • # 11 


We spent time on these, we hope you like them.


Attachments:
Solutions .pdf [86.66 KiB]
Downloaded 202 times
 
 
Post Posted: Sep 29, 2009, 9:14 pm • # 12 


That was V. 3.1 solutions. I shall fix up a V. 3.2 solution tomorrow.

The qualifying index was set to 87 for this test. The following people were successful:

Bacteria
mlbmlb37
bokagadha
Just_Beginner
SorcerorofDM
andersonw
Brut3Forc3
alkjash
zhou_qiang
zapi2007

_________________
A collection of problems @ CC&II!

Try a Mock AMC: 9/09. Currently collaborating on another.
 
 
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