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On the drive to school you pass two traffic lights. List all the combinations of lights you could get. Use R for red, G for green, Y for yellow.
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On the drive to school you pass two traffic lights.

List all the combinations of lights you could get.
Use R for red, G for green, Y for yellow.

User OniLink
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RR, RG, RY, GY, GG. YY, YG, YR, GR
User Birgersp
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