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doiyoubi
Guest
did anyone do it today?
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Rax
Custom Me up Scotty
I didnt even know it was on....................stupid school
lol
lol
Ah, i did it
Did anyone do question 2 well in the junor division? It was the one about dominoes and the rectangle, i think i got the 2x10 rectangle wrong
(How many ways to tile a 2x10 rectangle with identical dominoes - i.e. no dots)
Did anyone do question 2 well in the junor division? It was the one about dominoes and the rectangle, i think i got the 2x10 rectangle wrong
(How many ways to tile a 2x10 rectangle with identical dominoes - i.e. no dots)
I
icycloud
Guest
Hey this was Q1 in the senior division. I used a combinatorics approach but I think they expected you to use Fibonacci. BTW the answer to the 2x10 was 89 ways (10C0 + 9C1 + 8C2 + 7C3 + 6C4 + 5C5 or simply the 11th Fibonacci number).phlab.gtx said:
airie
airie <3 avatars :)
Ugh, don't even talk about it. I got the fact that it's the standard Fibonacci sequence with the first term of 1 taken out, but forgot about it when solving the recurrence and got the general form of each term for the standard Fibonacci sequence. :mad1:icycloud said:
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pLuvia
Guest
The Cricket team one I had no clue where to start, nor did I with the ants one
airie
airie <3 avatars :)
Yeah, that cricket team question was weird. I mean they didn't even give you the total number of plays in the team...or is it 11, cos the team's called something like "cricket eleven"? I ended up giving a table, anyhow. Meh.
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icycloud
Guest
Yeh it was eleven 
It was kinda obvious though
It was kinda obvious though
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pLuvia
Guest
But didn't it ask for the number of amatuers in the team? and the total income?
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icycloud
Guest
Yeh it did. I didn't get it out but apparently it was no amateurs.