Answer

 

5Emily Moore, Kelly Conroe, Becky Adams, and Matt Moore were all missing.  Kelly disappeared shortly after Emily.  Matt did not disappear first.  If Becky was the last to disappear, in what order did they disappear?

 

Since Becky is last to disappear, Emily and Kelly must disappear before her.  However, Matt can’t be first nor can he be last (Becky is last). This means that Matt has to come after Emily and Kelly, but before Becky.   Emily Moore, Kelly Conroe, Matt Moore, and Becky Adams

 

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