Answer:
12 chaperones and 80 students
Explanation:
Start by multiplying the numbers seperatly and then add. Keep doing this till you get to 92.
20(2)=40. 3(2)=6 46
20(3)=60. 3(3)=9 69
20(4)=80. 3(4)=12 92
Now you know there are 12 chaperones and 80 students. There are other ways to answer this problem like using systems of equations but it still gives the correct answer and is less advanced.
Hope this helps:)