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# Probability Question

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A bag contains 3 red tokens, 3 golden tokens and k black tokens. If you pick a golden token you win the game, if you pick a red token you get another go (but after that no more goes) and if you get a black token you lose. Using a tree diagram calculate (in terms of k) the probability of winning. Given that there is an equal chance of winning and losing, calculate the value of k.
2. (Original post by 11owolea)
A bag contains 3 red tokens, 3 golden tokens and k black tokens. If you pick a golden token you win the game, if you pick a red token you get another go (but after that no more goes) and if you get a black token you lose. Using a tree diagram calculate (in terms of k) the probability of winning. Given that there is an equal chance of winning and losing, calculate the value of k.
What have you tried? Please post a picture of your tree diagram.

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