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A blueberry cheesecake meant for dessert was already half-eaten in the afternoon. Below are the children's replies when their mom checked with them. Robert: Sarah ate the cake. Sarah: Robert lied. Tony: C'mon I didn't even open the fridge. Only one of them told the truth. Who ate the cake?

 

the link was here 

https://web2.0calc.com/questions/logic_3

 Apr 15, 2021
edited by Guest  Apr 15, 2021

Best Answer 

 #1
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I see what you mean.  But you aren't the only "Guest" on this site.  Let me take a crack at it. 

 

Robert: Sarah ate the cake.  

Sarah:  Robert lied.  

Tony:    C'mon I didn't even open the fridge.  

Only one of them told the truth.  

Who ate the cake?  

 

Assume Robert ate the cake.  Then Robert lied, Sarah told the truth, & Tony told the truth.   2 truths  

Assume Sarah ate the cake.  Then Robert told the truth, Sarah lied, & Tony told the truth.     2 truths  

Assume Tony ate the cake.  Then Robert lied, Sarah told the truth, & Tony lied.                      1 truth  

 

Tony ate the cake.  

.

 Apr 15, 2021
 #1
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+1
Best Answer

 

I see what you mean.  But you aren't the only "Guest" on this site.  Let me take a crack at it. 

 

Robert: Sarah ate the cake.  

Sarah:  Robert lied.  

Tony:    C'mon I didn't even open the fridge.  

Only one of them told the truth.  

Who ate the cake?  

 

Assume Robert ate the cake.  Then Robert lied, Sarah told the truth, & Tony told the truth.   2 truths  

Assume Sarah ate the cake.  Then Robert told the truth, Sarah lied, & Tony told the truth.     2 truths  

Assume Tony ate the cake.  Then Robert lied, Sarah told the truth, & Tony lied.                      1 truth  

 

Tony ate the cake.  

.

Guest Apr 15, 2021

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