SIMO camp

Blogger upload is abit weird, so i uploaded all the simo camp pictures here:

http://www.facebook.com/album.php?aid=146422&id=1390737661

First and 2nd last post in a year.

Singapore Mathematical Olympiad 2010 Senior Round 1

Before you flip to the answers, pls kindly post the top 3 scorer and score for the following schools if you know of:

NUSH, RGS, HCI

To start it off, here are the answers in sets of 5:

AEECB

EDBDC

132, 2575, 501, 35, 1994

1005, 216, 27, 2010, 60

2, 65, 72, 32, 2002

49, 112, 60, 6, 680

2780 (not too sure, this is off my head), 5, 360, 75, 12 (you you claim it is correct)

I failed quite a few questions here and there, ending up 4th in RI (missed the team) with a score of 29/35. (No sweets for those who guess the total team score =P)

Q6. Conveniently forgotten the case in which x-90 is negative.

Q24. Did not remember that i can differentiate it, instead go whack random cos double angle formula and got nothing. Guessed 32 (which is correct) then changed to 34, 3 seconds before the time is up. hence fail.

Q27. Sum wrongly. How smart.

Q29. Misread condition as a+b is a multiple of c.

Q31. Ignored all the f(x) in front of the 2^[f(x)], got M=78336 or something like that

Q35. Guessed 10. You you say dunno then must guess GM, which is 12. (he calculated it to be 12)

Summary:

Questions unsure of proper solution (during the paper): 14, 24, 28, 35

Careless: 6, 27, 29, 31