Riddles, brain puzzles and mathematical problems

[MyRedNeptune]

It doesn't matter which rats get which medicine (you do it however you want) as long as there is a "1-1" correspondence.
Every combination of rats corresponds to a bottle. (eg rat 1 + rat 2 + rat 5 corresponds to bottle 431 you decide how (it doesn't matter)). There are 1024>1000 possible combinations therefore after 20 hours you can check which rats died and then see which bottle they correspond to.

More mathematically defined:
a x combination of rats corresponds to a y bottle

A={1,1-2,1-2-3,1-5,5-7...}set of all combinations of rats
B={1,2,3,4,...1000} set of bottles

f:A-->B where f(x) = y
f is "1-1" which means that a x combination of rats corresponds to exactly one bottle and vice versa.

Ah, I see. Essentially, it's the same as mine, but less specific and more broad, right?

@BAndrew (what's up with the new name? ) - Hm, I'm having trouble understanding your solution. Which rats get which medicine? I'm a bit confused.

Actually he didn't meant to do this.

Also, part of this sentence is incorrect. Can you guess which?

PS. wow I used didn't + meant in the same sentence. My grammar is perfect!

Oh - I guess there's that, too. Lol. But, actually, what I wanted to say is that I'm a girl. Not a snide grammar Nazi.

Sorry for the inadvertent insult to your intelligence. ._.