Nathan, Joshua, Michelle, and Denise were in a room where a porcelain vase was found broken. When an inquiry was conducted by the building caretaker, each made a statement.

Nathan: Michelle broke the vase.
Joshua: Nathan did it.
Michelle: Nathan lied when he said Michelle did it.
Denise: I did not do it.

The caretaker knew that only one statement is not true and concluded that Joshua broke the vase.

Describe in complete sentences the method you use to show that the caretaker made an incorrect conclusion.

Question

Nathan, Joshua, Michelle, and Denise were in a room where a porcelain vase was found broken. When an inquiry was conducted by the building caretaker, each made a statement. 

Nathan: Michelle broke the vase. 
Joshua: Nathan did it. 
Michelle: Nathan lied when he said Michelle did it. 
Denise: I did not do it. 

The caretaker knew that only one statement is not true and concluded that Joshua broke the vase. 

Describe in complete sentences the method you use to show that the caretaker made an incorrect conclusion.

anonymous · Answer

@Mertsj

mertsj · Answer

Where did this weird question come from?

anonymous · Answer

Pretest, I think I got this down,  Nathan did it

anonymous · Answer

Some way of using a proof in a real world situation I think

mertsj · Answer

yep.  I agree.  Nathan did it.

anonymous · Answer

Yeah I can write out a proof for this just makin sure nathan did it

mertsj · Answer

Good for you.