~~You can get the probability of multiple events happening by multiplying together the probability of each event!
In this case, its the probability that both lights we're red- so
The chance that the first light you hit is red is ⅚, the chance of the next light being red would be ⅕ (follow the tree path)
⅚ × ⅕ = ⅙
That's your answer! You have a 1/6 probability that both lights showed red~~
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