16. The teacher distributed 60 storybooks to all the students in the class. If each student gets 1 book, there are still some left; if the remaining books are distributed with 2 students sharing 1 book, they are just enough. The class has ( ) students.

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【Answer】 40 people.
【Analysis】Key point: Multiple problems
Xueersi corresponding lecture: Grade 3 Summer Class (Lecture 5), Autumn Class (Lecture 9) Difference and multiple problems. Let the number of books distributed the second time be 1 unit, then the number of books (i.e., the number of people) distributed the first time is twice that of the second time. 1 unit: $60 \div(1+2)=20$ (books); Number of people: $20 \times 2=40$ (people).