一条走廊从一边到另一边每隔2米放一盆花,两侧总共放36盆花,这条走廊长多少米?

问题描述:

一条走廊从一边到另一边每隔2米放一盆花,两侧总共放36盆花,这条走廊长多少米?

(36-1)*2=70