Final answer:
Both A and B have an equal chance of winning.
Step-by-step explanation:
The question states that two players, A and B, are rolling a die with the condition that the first person to roll a 3 wins the game. If A starts the game, we need to determine who has a higher chance of winning.
Since there is only one 3 on the die, the probability of A winning on their first roll is 1/6. If A doesn't roll a 3, then B gets a turn. The probability of B winning on their first roll is also 1/6. The game continues in this manner until one of the players rolls a 3.
Therefore, both A and B have an equal chance of winning.