Question

I've been struggling with this for a few hours. If someone could provide an answer I could greatly appreciate it!

Answer 1

See explain

Step-by-step explanation:

I gotchu. First, let's just remove A from the beaker and feed it to a rat. If he lives, the poison is A, if not it's still in one of the 3. Now, remove B and feed to a rat. If he dies, it's not B or A . . . so on until you have your answer.