The 2007 iTest Solutions Manual (a thorough, extremely well-written document you'll want to check out) will be posted on the iTest site sometime tomorrow. Until then, here is the 2007 iTest Answer Key.
Many thanks to a great test-writing staff - Mathew Crawford, Zach Abel, and Nathan Savir - for an excellent job on the 2007 iTest exam. This is the caliber of event that we want students, educators, and parents to associate with the iTest organization.
PS...don't forget about the 2007 iTest Video Contest ... submissions due in 9/21. Check the August blog entry for more details if you haven't seen info already.
2007 iTest Answer Key
1. A
2. B
3. C
4. C
5. B
6. E
7. A
8. B
9. A
10. C
11. G
12. C
13. K
14. G
15. C
16. M
17. F
18. I
19. L
20. M
21. L
22. A
23. F
24. R
25. X
26. 300
27. 16
28. 72
29. 28
30. 10
31. 21840
32. 14
33. 80
34. 5
35. 96,433,469
36. 63.
37. 65
38. 19683
39. 13
40. 641999
41. 2004
42. 17
43. 751
44. 1109
45. 237
46. 2006
47. 1447
48. 13
49. 246
50. 1882
51. 516
52. 1536
53. 501
54. 1087
55. 225
56. 810
57. 57
58. 339
59. 17
60. 111
Tiebreakers: graded only if necessary to break ties among top national teams or for state championships.
Sunday, September 16, 2007
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27 comments:
lol everyone is reading the other thread
did anyone get 1589 for number 54?
i think the answer key might be wrong for that after the wording change
i agree with avi
We got 1589, yes. But I think 55 is right.
1589 same here on 54, but apparently it gives the same answer for 55
This is strange--
my team got q. 54 wrong, but managed to get 55-59 right. We got 1589 for question 54. I'm not sure if it's a mistake in the post or if the two answers imply the same answer for the next problem. I hope it's the former.
1589 here too
oh I didn't see your comments.
1589 here too
also 1589
I think a lot of people need to appeal for #54, it didn't affect 55-60, though.
1589!!!
bradley or dave or whoever reads these comments, please take a look at problem 54 - you made a wording change on 55 and somehow came up with the wrong answer for 54.
Did anybody else get 1859 for #50?
yea, my team got 1589 too
Thanks for bringing this to our attention. It's quite possible the Answer Key may have an error pertaining to the in-competition change to #55. We'll update this Blog as well as the iTest site once we confirm this one way or the other.
Hmm, I don't seem to agree with the answer to 55. It was the answer we got by figuring it out before the number change. According to the online version, the answer should be 225; but on the PDF, due to the number change from T-412 to T-914, the answer should be 5, and this changes all the subsequent answers.
Hmm, I see that:
1589 - 914 = 675
1087 - 412 = 675
This 675 leads to the later answers. But this is not the way it was. We were supposed to do:
1087 - 914 = 173, which gave us an answer of 5 for 55.
as above, it seems the answer should be 1589.
yes, since a lot of people put 1589 and got 55-60 right
sure it is 1589,but i dont care anyway since my team got 52-60 wrong, dead wrong. haha. U all lost the game!!!
Mazin: I got 1858 for #50, using the formula volume of a prismoid. I was pretty sure about it, but I guess the thing wasn't actually a prismoid...
i got D for #4, any1 else got D for #4?
I know this might be stupid question but ill take the risk anyway.
We got 1860 for #50 by integration :(
no and D is not 1/2... (4C2)/16 = 3/8
Can somebody tell me if #50's top part was a linear transformation from a circle to a square?
1589 is in fact the correct answer for #54. That was just a glitch on the posting of the answers.
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