Mathematics?

Can someone help me how to start answering this question? I dont know how to start or do i have to use truth table? 

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  • Lôn
    Lv 7
    1 month ago

    Babe's statement is FALSE...they both don't tell the truth (or a lie... only one does) so Babe must be the liar.

    Babe sells fake goods for Nodeals.

    Edit....we KNOW that BOTH of them don't lie or that BOTH of them doesn't tell the truth...only ONE of them does. So what Babe said is obviously a lie...so he must be the liar.

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