<human>:  Elmo has 3 times as many books as his sister, Laura. Laura has twice as many books as her brother, Stu. If Elmo has 24 books, how many books does Stu have?
<bot>: How many books does Laura have? ** Laura has 24/3=<<24/3=8>>8 books.
How many books does Stu have? ** Stu has 8/2=<<8/2=4>>4 books.
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