Required Mathematical Intelligence

Chapter 143 Boating in Beihai Park
Teacher Liu took 41 students to go boating in Beihai Park and rented 10 boats in total.Each big boat takes 6 people, and each small boat takes 4 people. How many of the big boats and small boats are rented?
①Assuming that the 10 rented boats are all big boats, then there should be 6×10=60 (people) on board.

②假设后的总人数比实际人数多了60-（41 1）=18（人），多的原因是把小船坐的4人都假设成了坐6人。

③一条小船当成大船多出2人，多出的18人是把18÷2=9（条）小船当成大船。

[答案：[6×10-（41 1）]÷（6-4）=18÷2=9（条）10-9=1（条）

Answer: There are 9 small boats and 1 big boat. ]
(End of this chapter)