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Logic Games Practice – Trucks

Diagram the following game rule:

“The red truck arrives before either the orange truck or the blue truck, but not both.”  (Assume that all of the trucks arrive at different times.)


For this rule, we will write out both possible options.  In the first, we will write R before O.  In that case, since R cannot be before both O and B, we will write B before R.  For the other option, we will write R before B.  In that case, R cannot also be before O.  So, O will be before R.  So our two options for this rule are: B – R – O and O – R – B.

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