Distribute several books to several children. If each person divides 4 books, there will be 20 books left; if each person divides 8 books, there will be 1 child left. a child?
将若干本书分给几个小朋友，如果每人分4本就还剩下20本；如果每人分8本，就剩下1名小朋友，虽然分到了，但是不足8本书，则共有多少名小朋友？
<result>6</result>