Answer: No. This is a situation where you lose even if you win. Assuming the other person is being wise, they would take your $2 and say, "I lose", and give you $1 in return. You win the bet, but you're out $1.
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No. This is a situation where you lose even if you win. Assuming the other person is being wise, they would take your $2 and say, “I lose”, and give you $1 in return. You win the bet, but you’re out $1.
Answer: Weigh a group of 3 balls against another group of 3, then you'll know which group of 3 contains the heavy ball. Pick 2 balls from that group and weigh one against the other.