If all five boats are small boats, you can only sit: 4X5=20 (people).

So there are still four students who are not seated: 24-20=4 (people)

Each big boat can take two more people than the small boat: 6-4=2 (people)

Therefore, the big ship has to rent two ships: 4÷2=2 (ship).

Small boat needs: 5-2=3 (strips)

A: Omit.

Chickens and rabbits can also be kept in cages in this way. Please try it. I hope my answer can help you and your children.

Hope to adopt!